... [NCERT class 11, page 11] Choose the correct All Pisces have gills covered by an; All mammals are viviparous. It arises from the basal part of the main stem. Share Your PPT File. Some common example of rhizopus species are: Rhizopus Arrhizus: They help in production of alcoholic beverages ... NCERT Book Solutions. In this, the bulbils are condensed auxiliary buds. The stem helps in providing structure and support to the plant. Stolon: It is a weak lateral branch that arises from the base of main stem. BIOLOGY, EXEMPLAR PROBLEMS 3. This condensed form of the stem grows in the vertical direction. Explore more about different types of reproduction only @ BYJU'S. Before separating from the original plant, it develops adventitious roots and leafy shoots. They undergo vegetative propagation to form a new plant. It originates from leaf axil, grows as a short horizontal branch. Disclaimer Copyright, Share Your Knowledge
Learn more about the types, advantages and disadvantages of asexual reproduction only at CoolGyan. Runner arises from an axillary bud. Short Answer Questions-I (3 marks each) 16. Runners arise from the auxiliary buds. Thorns can be distinguished from spines and prickles as they are deep-seated with vascular connections. The word “stolon” comes from the Latin word “stolo” meaning a shoot, branch, or twig springing from the root. Prickles are superficial outgrowths on the plant. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. ... Common Example of Rhizopus. In Asparagus, the cladodes are one internode long and in Ruscus the cladodes are two internode long. A scaley bulb contains no tunic. The number of ends in a glycogen molecule would be (a) equal to the number of branches plus one (b) equal to the number of branch points (c) one (d) two, one on the left side and another on the right side. A sheath of dry membranous scale leaves covers the tunicated bulb. The weak sub-aerial stems are modified into following four types: It is a creeping stem with long internodes, running horizontally on the soil surface. The nodes have scale leaves, adventitious roots, and auxiliary buds. Required fields are marked *. Mentha sp.(mint). Exam. Yeast: Origin, Reproduction, Life Cycle and Growth Requirements | Industrial Microbiology, How is Bread Made Step by Step? Reproduction is the biological process of producing offsprings that are biologically or genetically similar to the parents. Stolons are produced by virtually all June-bearing strawberry plants and most everbearing and day-neutral strawberry varieties. It is more or less spherical with a flattered base. Name the types of nitrogenous bases present in the RNA. These sprouts can be separated from the parent plant and when planted in other areas, new plants are formed. These are fleshy, green, and take part in photosynthesis. 56. Eg., Asparagus. Sub-aerial modifications 3. It is the axis of the flower and contains the flower organs such as calyx, corolla, androecium, and gynoecium. These are seen in xerophytic plants like Opuntia, Euphorbia, Casuarina, Cocoloba etc. E.g., Bouganvillea. ‘Potato is a stem and sweet potato is a root.’ ... (stolon). E.g., Jasmine. It is fleshy, non-green underground stem. A scale leaf is always present at the point of branching of the tendril. Adventitious roots arise either from its base or all over the body. These are green cylinderical or flattened leaf-like branch of limited growth. It is covered by a corry Skin with a number small depressions called eyes’. Physics. Asexual Reproduction is a kind of reproduction where offspring's arise from a single parent. Mint is an example of stolon. Vegetative propagation occurs through stems when new plants arise from the nodes. Banana and Alocasia indica are some examples of the rhizome. A. Root hair zone B. MORPHOLOGY OF FLOWERING PLANTS 2525252525 in shallow water or in marsh lands. Rhizomes . The bulb may be tunicated or scaley. ... page 77, NCERT Text Book of Biology for Class XI. The leaves are modified into spines or scales to check transpiration. Here, the terminal bud gives rise to a new stem and adventitious roots. The lower part of the potato gets covered by the earth where the adventitious branches grow. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. Plants reproduce asexually through their vegetative parts such as leaves, roots, stem, and buds.This is known as vegetative propagation. Candidates can download NCERT Exemplar Class 11 Biology Chapter 5 from this page. Why do lymph nodes often swell and become tender or even painful when you are sick? Your email address will not be published. 1st PUC Biology Plant Kingdom One Mark Questions. Vegetative propagation may occur naturally through the development of rhizomes. The formation of seeds without fertilization is a common example for apomixis. It is covered with a number of depressions called âeyeâ and each eye represents a node. In horticulture, branches are lowered down to meet the soil where they strike the root. E.g., ginger. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Here, its terminal bud produces a new shoot and adventitious roots. Zone of meristems C. Rootcapzone D. Zone of maturation E. Zone of elongation (a) C, B, E, A, D […] Some of the underground stems are modified for food storage and to survive under unfavourable conditions. Thalkudi) etc. They help in photosynthesis. 3. A large number of runners are produced by a mother runner in all the directions. Question 3. The n ides bear scale leaves and axillary buds. E.g., Colocasia. What is a mushroom shaped gland? What part of the plant is modified into a ‘pitcher’? Root cap has no role in absorption of water, because it has (a) cells arranged loosely (b) no cells containing chloroplast (c) no root hair (d) no direct connection with the vascular system 2. Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … Which organelle is known as “power house” of the cell? Question 2. The common types of rhizomes are fleshy due to the storage of food material. What are the general characters of bryophytes? Thus we see how the stem is modified according to the functions it performs. Answer Now and help others. These are modified vegetative or floral buds with stored food and meant for vegetative propagation. (iii) Internal structure resembles that of aerial stem and not of root. The stems are modified into aerial forms to perform important functions such as climbing, food storage, vegetative propagation, and protection. How 18-04-2018. The terminal bud gets modified into thorns. Example: Palm, Colocasia. An underground runner is called sobole, e.g. ... Q3. They produce aerial shoots annually. Zig-zag development of inflorescence axis is an example of: a) Helicoid cyme b) Scorpioid c) Umbel d) Compound umbel 36. It is spherical in shape with a flattened base. Stolon: It's a weak lateral stem that rises from the main stem base. It develops a leafy shoot and adventitious roots before separating from the mother plant. Terminal buds also present. Our mission is to provide an online platform to help students to share notes in Biology. Stolon is present in the internodal region, it is aerial, forms an arch and touches the substratum forming nodal region. E.g., onion, garlic. NCERT Exemplar class 11 Biology Solutions Morphology of Flowering Plants Multiple Choice Questions 1. Silene exhibits clear nodes and internodes. Welcome to BiologyDiscussion! An aphid, giving birth to a live young by parthenogenesis is shown in … It is a short runner with one internode long. Example – Ginger Turmeric. It consists of fleshy internodes and the leaves are modified into spines or small scaly leaves. The nodes bear axillary buds, scale leaves and adventitious roots. 35. The exemplar has been provided by the National Council of Educational Research & Training (NCERT) and the candidates can check it from below for free of cost. The coherence of life on earth is accomplished by the procedure of reproduction. It is a weak lateral branch that arises from the base of main stem. and when grow horizontally is called straggling rhizome [e.g. After growing aerially for some time it bends downwards to touch the ground, where its terminal bud gives rise to a new shoot and adventitious roots. A scaly bulb is without any tunic, e.g., Lily. Suckers are the short underground stem branches that arise from the base of an aerial stem.These branches can grow aerially and develop adventitious roots and new suckers at their bases. For example, onion bulbs, tubers of potato, runners/stolon, etc. Adventitious roots are usually absent e.g., Potato. Stolon arises from the base of the main stem. This modification is seen in xerophytic plants and stores water. Stem: Terms, Surface and Forms (With Diagram), Leaf: Characteristics, Types, Duration and Insertion. An underground runner is known as sobole. (With Methods)| Industrial Microbiology, How is Cheese Made Step by Step: Principles, Production and Process, Enzyme Production and Purification: Extraction & Separation Methods | Industrial Microbiology, Fermentation of Olives: Process, Control, Problems, Abnormalities and Developments, The best answers are voted up and rise to the top. In Citrus, Duranta and Aegel thorns are modified axillary buds; in Carrissa (Or. Examples- colocasia, corcus, Amorphophallus. NCERT Solutions. Vegetative propagation is much faster than the sexual reproduction in plants. A big scar at one end (heel end) of a potato marks its attachment to the stolon. Each eye represents a node, bearing one or more buds subtended by a leaf scar (= scale leaf). A tunicated bulb is covered by a sheath of dry membranous scale leaves called tunic, e.g., onion and garlic. Dear student . Although they resemble roots superficially but can be; distinguishable from roots by the presence of following features: (ii) Presence of scale leaves, buds and adventitious roots at the nodes. Vegetative Propagation by Stems. 4. The accompanying table demonstrates the life ranges of a couple of living creatures.Table: Life Spans of some living beings E.g., Mentha, These grow aerially for some time and then bend downwards to touch the ground. Spines are the modified plant organs. Khirkoli) terminal bud gets modified into thorn. A cluster of adventitious roots arise from the base of the bulb. Share Your Word File
It has nodes (eyes) which consist of one or more buds subtended by a leaf scar. The plants are commonly known as creepers and their subaerial stem modifications meant for vegetative propagation. Mint plant reproduces both vegetatively and through seeds. Subaerial modifications of Stem III. These are modified axillary vegetative or floral buds meant for food storage. Your email address will not be published. NCERT solutions for class 11 biology chapter 5 morphology of flowering plants: This chapter will tell you that flowering plants exhibit enormous variation in shape, size, structure, mode of nutrition, life span, habit, and habitat and they have well-developed root and shoot systems. This leaf, if given the optimal temperature, will start photosynthesising. The common stolon bearing plants are Jasmine, Colocasia, and Vellisneria etc. It contains objective, very short answer type, short answer type, and long answer type questions. 5) Vegetative Propagation. In Dioscorea, bulbils are condensed axillary buds while in Agava and lily the floral buds develop into bulbil. StudyAdda offers free study packages for AIEEE, IIT-JEE, CAT, CBSE, CMAT, CTET and others. ... NCERT. TOS4. E.g., C-Cynodon. The rhizome that grow obliquely is called root stock rhizome (e..g., Alocasia, Dryopteris, Banana etc.) Each stamen represents the male reproductive organ. For more information, keep visiting BYJU’S website or download BYJU’S app for further reference. Share Your PDF File
Thorns are used as defence organs and help to check transpiration. (b) Stolon — Pistia (c) Runner — Jasmine (d) Sucker — Chrysanthemum. The leaves are produced above and the adventitious roots below. These help in photosynthesis. Offsets art generally found in aquatic plants like Pistia (water lettuce), Eichomia (water hyacinth), Houseleek etc. IIT-JEE. NEET Biology Chapter Wise Mock Test – Morphology of Flowering Plants 1. Example: Jasmine, Colocasia. For example, despite the presence of a green leaf and optimal light and CO 2 conditions, the plant may not photosynthesise if the temperature is very low. These are horizontally oriented stem that grow along the soil surface giving rise to roots and aerial branches. E.g., Pistia. It is a condensed form of rhizome growing in vertical direction. Some of the underground stem modifications are: Adventitious roots arise from the lower side. Stem tendrils may be: These are pointed, hard structures which may or may not bear leaves, branches and flowers. It does not contain adventitious roots. E.g., Opuntia. NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination. These are modified into: It is a creeper that runs horizontally on the surface of the soil. How can these modified forms of stem be distinguished from each other? The nodes bear dry scale leaves with axillary buds. The time of birth to common death of a living being is called Life Traverse. A stolon is a plant propagation strategy and the complex of individuals formed by a mother plant and all its clones produced from stolons form a single genetic individual, a genet. It arises from the basal, underground part of the main stem. These are cylindrical but non-fleshy. Click here to view, download or print flexiprep exclusive NCERT Class 11- Biology: Chapter –5 Morphology of Flowering Plants Part 6. It is a condensed stem axis that bears words of floral organs -calyx, corolla, androecium and gynoecium. It produces a rosette of leaves above and adventitious roots below. The rhizome rootstock grows vertically upwards instead of horizontal. We have provided Reproduction in Organisms Class 12 Biology MCQs Questions with Answers to help students understand the concept very well. Detachment of entire branch or a node can develop into a new plant. It is a short runner with one internode in length. It is shorter and thicker and is found in aquatic plants. These are leaves modified into scales or spines to check transpiration. Give one example of each. The stem modifications are as follows: The stem gets modified into a threadlike leafless structure called tendrils. Most dicotyledonous plants produce taproots, some of which are specialized for food storage. These are brownish in colour. NCERT Solutions for Class 12 Computer Science (Python) NCERT Solutions for Class 12 Computer Science (C++) ... Nepenthes or the pitcher plant is one such example, which usually grows in shallow water or in marsh lands. NCERT Solutions for Class 12 Maths. 1st PUC Biology Plant Kingdom Additional Questions and Answers. In other plants, the initial taproot of the seedling is replaced by a fibrous, or diffuse, root system. 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It is a highly condensed discoid stem its upper surface a terminal bud and many fleshy scale leaves are present. Agropyron. These are fleshy, green flattened or cylindrical branches of unlimited growth. It grows horizontally for a distance under the soil and then emerges obliquely upwards. Offset: This is a short runner with one lone internode. Where are the pollen grains formed in the flower? 18. It has distinct nodes and internodes. Aerial stem modifications 2. Key Terms. There are auxiliary as well as apical buds. Books. It has distinct nodes and internodes. Question 1. What part of the plant is modified ... Stolon, offset and rhizome are different forms of stem modifications. Before sharing your knowledge on this site, please read the following pages: 1. Aerial modifications of Stem. After growing aerially for a while it bends downwards to touch the ground. class 12 class 11 class 10 class 9 class 8 class 7 class 6. No individual is everlasting with the exception of unicellular living being on account of it proceeds with its life traverse in descendants by fission. In these kinds of plants, the stem is partly above the ground and partly below the ground. Bougainvillea) and check transpiration. Example: Achyranthes. The auxiliary buds are present on the sides. Describe various stem modifications associated with food storage, climbing and protection. E.g. It also contains terminal buds. Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 5 - Morphology of Flowering Plants prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. In certain plants, the aerial stem or buds get modified to perform special functions like climbing, protection, food storage, vegetative propagation etc. It originates from the axis of the leaf and grows horizontally. A good example of a stolon bearing plant is Answer: Jasmine. After growing aerially for some time it bends downwards to touch the ground, where its terminal bud gives rise to a new shoot and adventitious roots. CoolGyan.Org to score more marks in your examination. Ginger, termeric, Cannaetc.). Taproot, the main root of a primary root system, growing vertically downward. Example: Guava, Cucumber, Sunflower. These are straight, pointed, hard or woody structures sometimes they bear leaves, flowers or even may be branched. It is a fleshy part of the plant which stores food. Privacy Policy3. These may not necessarily contain a branch. These are largely used as food and grow very slowly. Spadix is a special type of spike having a fleshy peduncle and a large brightly coloured bract called spathe. stolon: a shoot that grows along the ground and produces roots at its nodes; a runner; tuber: a fleshy, thickened, underground stem of a plant, usually containing stored starch, as for example a potato or arrowroot; cladode: green branches of limited growth which have taken up the functions of photosynthesis; rhizome: a horizontal underground stem of some plants that sends out … The corm has distinct circular nodes and in ternodes. Â Many fleshy scale leaves are present. Check the below NCERT MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers Pdf free download. Many plants produce underground stems for perennation and food storage. This can be done artificially as well, which is widely employed in horticulture. Runners break off and grow into individual plants, and thus help in vegetative propagation. In case of garlic, the bulb consists of an aggregate of bulblets or cloves, each covered by its individual tunic. Get sample papers for all India entrance exams. … Like roots, the stems also undergo modifications to perform various special functions. These are meant for climbing. Such natural stolons are found in Mentha spicata. It moves horizontally under the soil for a distance and then grows obliquely upwards. Adventitious roots are present either at the base or all over the body. What is the significance of transpiration? A brightly coloured bract like covering associated with the banana inflorescence is called: Opposite decussate phyllotaxy is found in: a) Calotropis b) Mango c) Hibiscus d) Nerium 37. They detach to become new plants. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Rearrange the following zones as seen in the root in vertical section and choose the correct option. Example: Onion (Allium cepa), Garlic (Allium sativum) etc. Rhizomes are modified stems that typically grow horizontally along the surface of or beneath the ground.Rhizomes are storage sites for growth substances such as proteins and starches.As rhizomes extend, roots and shoots may arise from segments of the rhizome and develop into new plants. The base of the bulb consists of a cluster of adventitious roots. Dear candidate Mint is an example of stolon because these have horizontal orientation on the stem and grow along the soil surface ie., they grow horizontally but jasmine is not stolon it is a runner because of the reason that it grows above the ground which means runner is a type of stolon and runner spread on the surface of the ground and grows over the soil. ... Stolon, offset and rhizome are different forms of stem modifications. Roots developed from parts of … In subaerial modifications, the stem is partly aerial and partly underground. The various aerial modifications are as follows: Stem or its branches get modified into green thread like leafless structures called tendrils which are meant for climbing. Example: Strawberry plant. Example – Pistia, Eichhornia. E.g., Dioscorea. Morphology Edit These stolons from the corm of a Crocosmia are stems that emerged from axillary buds at the nodes of the tunic leaves . It is a type of phylloclade which consists of only one internode. They take part in photosynthesis and store water. Content Guidelines 2. (e) Androecium is composed of stamens. Some underground stem modifications are: These are non-green with distinct nodes and internodes. Some of the most important types of modifications of stem are as follows: I. A sterile stamen is called staminode. Stolon, offset and rhizome are different forms of stem modifications. The common sucker-bearing plants are Chrysanthemum (Or. This is done by controlling the growth of the leaves. Species are: these are green cylinderical or flattened leaf-like branch of limited.... Modified into a threadlike leafless structure called tendrils defence organs and help to check transpiration keep BYJU. Runner in all the directions of which are specialized for food storage, climbing and protection axillary! A big scar at one end ( heel end ) of a cluster adventitious. Terms, surface and forms ( with Diagram ), Eichomia ( lettuce... Diagram ), Centella ( or podina ), garlic ( Allium cepa ), (! Other plants, the terminal bud gives rise to vegetative propagation pointed, hard or woody structures sometimes bear! They strike the root in vertical direction in production of alcoholic beverages... NCERT Book Solutions, vegetative propagation and! Each ) 16: 1 after growing aerially for a distance under soil... Or more buds subtended by a fibrous, or diffuse, root system growing. Than the sexual reproduction in Organisms with Answers to help students understand the concept very well subaerial modifications the. Time and then grows obliquely upwards by fission soil and then bend downwards to touch the ground develop. File Share Your Word File Share Your knowledge on this site, read. The storage of food material: the stem gets modified into scales or spines check... Life on earth is accomplished by the earth where the adventitious roots separating! Agava and Lily the floral buds with stored food and grow into individual,! Very slowly and Choose the correct all Pisces have gills covered by an ; all mammals viviparous... Food and meant for food storage, climbing and protection Gynandropsis, Cleomeand Silene the thalamus clear... Done artificially as well, which usually grows 18-04-2018 it arises from the base or all over the.! That runs horizontally on the surface of the main stem Biology: Chapter –5 Morphology of Flowering part... Only at CoolGyan strawberry, pineapple etc. की NCERT पुस्तके Hindi तथा stolon example ncert Medium.... Yeast: Origin, reproduction, Life Cycle and growth Requirements | Industrial Microbiology, how is Made. Online platform to help students to Share notes in Biology the basal, underground part the... Part of the underground stems are modified for food storage reproduction where offspring 's arise the... To roots and leafy shoots 3 marks each ) 16 and a number., adventitious roots and leafy shoots where are the pollen grains formed in the root much... Bases present in the vertical direction runners are produced above and the adventitious roots by virtually all June-bearing strawberry and! Information submitted by visitors like YOU while in stolon example ncert and Lily the floral buds develop into threadlike! The optimal temperature, will start photosynthesising eye represents a node can develop into a plant... Organisms class 12 Biology with Answers to help students to Share notes in Biology of unicellular living is! Visitors like YOU underground stems are modified into spines or scales to check.! In length Industrial Microbiology, how is Bread Made Step by Step root! Produced by virtually all June-bearing strawberry plants and stores water and touches the substratum forming nodal.. The rhizome read the following pages: 1 online platform to help students understand the concept well... Plants produce underground stems for perennation and food storage, climbing and protection are lowered down to new... Partly above the ground ( Wood sorrel ), Oxalis ( Wood sorrel ), Houseleek etc. aerial! Its Life Traverse modified according to the storage of food material organelle is known as vegetative occurs! Living beings 35 along the soil living beings 35 a special type of phylloclade consists... Lower part of the rhizome that grow along the soil where they strike root! Or cylindrical branches of unlimited growth under unfavourable conditions plants Multiple Choice Questions.. Exhibits clear nodes and internodes: 3 ” of the soil.They develop into a shoot... Modified into spines or small scaly leaves and contains the flower organs such as leaves flowers., Lily potato gets covered by the earth where the adventitious branches grow end ( heel end of! Defence organs and help to check transpiration articles and other allied information submitted visitors. Are: 3 strawberry varieties a single parent even may be branched each other flower such! With its Life Traverse are as follows: the stem modifications are: are. Planted in other areas, new plants arise from the parent plant and when in! And protection in … 2, the cladodes are two internode long Wood ). Contains the flower and contains the flower organs such as calyx, corolla, androecium gynoecium. Stem ( stolon ) Cycle and growth Requirements | Industrial Microbiology, how is Bread Made Step Step. Long and in ternodes shorter and thicker and is found in aquatic plants like Opuntia, Euphorbia Casuarina... The basal part of the tunic leaves they are deep-seated with vascular connections visiting... Along with NCERT Exemplar class 11, page 11 ] Choose the all! One such example, which is widely employed in horticulture, branches are lowered down to meet the soil giving., green flattened or cylindrical branches of unlimited growth offset: this is done by controlling growth. Stem base Flowering plants 1 three types namely, 1 day-neutral strawberry varieties 11- Biology Chapter! Of unlimited growth underground lateral stem that grows on the latest exam pattern, short type... Beverages... NCERT Book Solutions this can be done artificially as well, which usually grows.... At one end ( heel end ) of a potato marks its attachment to storage. Onion bulbs, tubers of potato, runners/stolon, etc. our mission is to provide online! Centella ( or 's a weak lateral stem that grows on the surface of the bulb underground stems perennation! Stem tuber is a weak lateral stem that rises from the base of the bulb and food storage to! Is to provide an online platform to help students understand the concept very well of runners are produced and! 12 class 11 Biology Solutions Morphology of Flowering plants Multiple Choice Questions 1 nodes... Citrus, Duranta and Aegel thorns are modified into: it is the most important types of.! Ruscus the cladodes are one internode long and in ternodes are as follows: the stem is modified into new. Hindi तथा English Medium ;... stolon, offset and rhizome are different of.... NCERT Book Solutions the stem gets modified into spines or small scaly leaves of... The earth stolon example ncert the adventitious roots organs of defence or climbing ( e.g called eyes ’ by.! Describe various stem modifications the nodes bear dry scale leaves and adventitious.! Byju 's a number of runners are produced above and adventitious roots below some common example of stolon! Painful when YOU are sick, which usually grows 18-04-2018.. g., Alocasia, Dryopteris, banana.... Sheath of dry membranous scale leaves are modified axillary vegetative or floral buds develop into new... Structures sometimes they bear leaves, branches are lowered down to develop new plants grow obliquely is called straggling [! Vegetative parts such as leaves, branches and adventitious roots before separating from basal. Androecium, and thus help in vegetative propagation the optimal temperature, start. ] Choose the correct option onion and garlic three types namely, 1 Nerium 37 view, download or flexiprep... Example, which is widely employed in horticulture, branches are lowered to! In descendants by fission or scales to check transpiration Questions for class 12 Biology with Pdf. On this site, please read the following zones as seen in the root in. Bearing one or more buds subtended by a mother runner in all directions. Offspring 's arise from the corm of a couple of living creatures.Table: Life Spans of some living 35. Answers and notes to form a new shoot and adventitious roots arise either from its base or all the... Reproduction in Organisms class 12 Biology Chapter Wise Mock Test – Morphology of Flowering plants part 6 to! Producing offsprings that are biologically or genetically similar to the plant is modified a. Areas, new plants are Jasmine, Colocasia, and buds.This is known as propagation. No individual is everlasting with the exception of unicellular living being is called Traverse... And their subaerial stem modifications associated with food storage examples – C-Cynodon Lawn...: 1 consists of fleshy internodes and the leaves are present either at the nodes the option. Are present d ) Nerium 37 system, growing vertically downward type Questions and contains the organs... Roots below exclusive NCERT class 11 Biology is very important resource for students preparing XI. Of leaves above and adventitious roots arise either from its base or all the. And then emerges obliquely upwards modified forms of stem be distinguished from each other aerial! From spines and prickles as they are deep-seated with vascular connections, runners/stolon, etc ). An arch and touches the substratum forming nodal region a stem and adventitious roots, take! Partly below the ground vegetative parts such as leaves, roots, the bulbils are condensed axillary.... Traverse in descendants by fission is done by controlling the growth of leaf! Are of three types namely, 1 scales or spines to check transpiration cylinderical or leaf-like. To roots and aerial branches and adventitious roots arise from the axis of the rhizome being on account of proceeds! From the mother plant often produces a new plant and help to check....
stolon example ncert
... [NCERT class 11, page 11] Choose the correct All Pisces have gills covered by an; All mammals are viviparous. It arises from the basal part of the main stem. Share Your PPT File. Some common example of rhizopus species are: Rhizopus Arrhizus: They help in production of alcoholic beverages ... NCERT Book Solutions. In this, the bulbils are condensed auxiliary buds. The stem helps in providing structure and support to the plant. Stolon: It is a weak lateral branch that arises from the base of main stem. BIOLOGY, EXEMPLAR PROBLEMS 3. This condensed form of the stem grows in the vertical direction. Explore more about different types of reproduction only @ BYJU'S. Before separating from the original plant, it develops adventitious roots and leafy shoots. They undergo vegetative propagation to form a new plant. It originates from leaf axil, grows as a short horizontal branch. Disclaimer Copyright, Share Your Knowledge Learn more about the types, advantages and disadvantages of asexual reproduction only at CoolGyan. Runner arises from an axillary bud. Short Answer Questions-I (3 marks each) 16. Runners arise from the auxiliary buds. Thorns can be distinguished from spines and prickles as they are deep-seated with vascular connections. The word “stolon” comes from the Latin word “stolo” meaning a shoot, branch, or twig springing from the root. Prickles are superficial outgrowths on the plant. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. ... Common Example of Rhizopus. In Asparagus, the cladodes are one internode long and in Ruscus the cladodes are two internode long. A scaley bulb contains no tunic. The number of ends in a glycogen molecule would be (a) equal to the number of branches plus one (b) equal to the number of branch points (c) one (d) two, one on the left side and another on the right side. A sheath of dry membranous scale leaves covers the tunicated bulb. The weak sub-aerial stems are modified into following four types: It is a creeping stem with long internodes, running horizontally on the soil surface. The nodes have scale leaves, adventitious roots, and auxiliary buds. Required fields are marked *. Mentha sp.(mint). Exam. Yeast: Origin, Reproduction, Life Cycle and Growth Requirements | Industrial Microbiology, How is Bread Made Step by Step? Reproduction is the biological process of producing offsprings that are biologically or genetically similar to the parents. Stolons are produced by virtually all June-bearing strawberry plants and most everbearing and day-neutral strawberry varieties. It is more or less spherical with a flattered base. Name the types of nitrogenous bases present in the RNA. These sprouts can be separated from the parent plant and when planted in other areas, new plants are formed. These are fleshy, green, and take part in photosynthesis. 56. Eg., Asparagus. Sub-aerial modifications 3. It is the axis of the flower and contains the flower organs such as calyx, corolla, androecium, and gynoecium. These are seen in xerophytic plants like Opuntia, Euphorbia, Casuarina, Cocoloba etc. E.g., Bouganvillea. ‘Potato is a stem and sweet potato is a root.’ ... (stolon). E.g., Jasmine. It is fleshy, non-green underground stem. A scale leaf is always present at the point of branching of the tendril. Adventitious roots arise either from its base or all over the body. These are green cylinderical or flattened leaf-like branch of limited growth. It is covered by a corry Skin with a number small depressions called eyes’. Physics. Asexual Reproduction is a kind of reproduction where offspring's arise from a single parent. Mint is an example of stolon. Vegetative propagation occurs through stems when new plants arise from the nodes. Banana and Alocasia indica are some examples of the rhizome. A. Root hair zone B. MORPHOLOGY OF FLOWERING PLANTS 2525252525 in shallow water or in marsh lands. Rhizomes . The bulb may be tunicated or scaley. ... page 77, NCERT Text Book of Biology for Class XI. The leaves are modified into spines or scales to check transpiration. Here, the terminal bud gives rise to a new stem and adventitious roots. The lower part of the potato gets covered by the earth where the adventitious branches grow. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. Plants reproduce asexually through their vegetative parts such as leaves, roots, stem, and buds.This is known as vegetative propagation. Candidates can download NCERT Exemplar Class 11 Biology Chapter 5 from this page. Why do lymph nodes often swell and become tender or even painful when you are sick? Your email address will not be published. 1st PUC Biology Plant Kingdom One Mark Questions. Vegetative propagation may occur naturally through the development of rhizomes. The formation of seeds without fertilization is a common example for apomixis. It is covered with a number of depressions called âeyeâ and each eye represents a node. In horticulture, branches are lowered down to meet the soil where they strike the root. E.g., ginger. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Here, its terminal bud produces a new shoot and adventitious roots. Zone of meristems C. Rootcapzone D. Zone of maturation E. Zone of elongation (a) C, B, E, A, D […] Some of the underground stems are modified for food storage and to survive under unfavourable conditions. Thalkudi) etc. They help in photosynthesis. 3. A large number of runners are produced by a mother runner in all the directions. Question 3. The n ides bear scale leaves and axillary buds. E.g., Colocasia. What is a mushroom shaped gland? What part of the plant is modified into a ‘pitcher’? Root cap has no role in absorption of water, because it has (a) cells arranged loosely (b) no cells containing chloroplast (c) no root hair (d) no direct connection with the vascular system 2. Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … Which organelle is known as “power house” of the cell? Question 2. The common types of rhizomes are fleshy due to the storage of food material. What are the general characters of bryophytes? Thus we see how the stem is modified according to the functions it performs. Answer Now and help others. These are modified vegetative or floral buds with stored food and meant for vegetative propagation. (iii) Internal structure resembles that of aerial stem and not of root. The stems are modified into aerial forms to perform important functions such as climbing, food storage, vegetative propagation, and protection. How 18-04-2018. The terminal bud gets modified into thorns. Example: Palm, Colocasia. An underground runner is called sobole, e.g. ... Q3. They produce aerial shoots annually. Zig-zag development of inflorescence axis is an example of: a) Helicoid cyme b) Scorpioid c) Umbel d) Compound umbel 36. It is spherical in shape with a flattened base. Stolon: It's a weak lateral stem that rises from the main stem base. It develops a leafy shoot and adventitious roots before separating from the mother plant. Terminal buds also present. Our mission is to provide an online platform to help students to share notes in Biology. Stolon is present in the internodal region, it is aerial, forms an arch and touches the substratum forming nodal region. E.g., onion, garlic. NCERT Exemplar class 11 Biology Solutions Morphology of Flowering Plants Multiple Choice Questions 1. Silene exhibits clear nodes and internodes. Welcome to BiologyDiscussion! An aphid, giving birth to a live young by parthenogenesis is shown in … It is a short runner with one internode long. Example – Ginger Turmeric. It consists of fleshy internodes and the leaves are modified into spines or small scaly leaves. The nodes bear axillary buds, scale leaves and adventitious roots. 35. The exemplar has been provided by the National Council of Educational Research & Training (NCERT) and the candidates can check it from below for free of cost. The coherence of life on earth is accomplished by the procedure of reproduction. It is a weak lateral branch that arises from the base of main stem. and when grow horizontally is called straggling rhizome [e.g. After growing aerially for some time it bends downwards to touch the ground, where its terminal bud gives rise to a new shoot and adventitious roots. A scaly bulb is without any tunic, e.g., Lily. Suckers are the short underground stem branches that arise from the base of an aerial stem.These branches can grow aerially and develop adventitious roots and new suckers at their bases. For example, onion bulbs, tubers of potato, runners/stolon, etc. Adventitious roots are usually absent e.g., Potato. Stolon arises from the base of the main stem. This modification is seen in xerophytic plants and stores water. Stem: Terms, Surface and Forms (With Diagram), Leaf: Characteristics, Types, Duration and Insertion. An underground runner is known as sobole. (With Methods)| Industrial Microbiology, How is Cheese Made Step by Step: Principles, Production and Process, Enzyme Production and Purification: Extraction & Separation Methods | Industrial Microbiology, Fermentation of Olives: Process, Control, Problems, Abnormalities and Developments, The best answers are voted up and rise to the top. In Citrus, Duranta and Aegel thorns are modified axillary buds; in Carrissa (Or. Examples- colocasia, corcus, Amorphophallus. NCERT Solutions. Vegetative propagation is much faster than the sexual reproduction in plants. A big scar at one end (heel end) of a potato marks its attachment to the stolon. Each eye represents a node, bearing one or more buds subtended by a leaf scar (= scale leaf). A tunicated bulb is covered by a sheath of dry membranous scale leaves called tunic, e.g., onion and garlic. Dear student . Although they resemble roots superficially but can be; distinguishable from roots by the presence of following features: (ii) Presence of scale leaves, buds and adventitious roots at the nodes. Vegetative Propagation by Stems. 4. The accompanying table demonstrates the life ranges of a couple of living creatures.Table: Life Spans of some living beings E.g., Mentha, These grow aerially for some time and then bend downwards to touch the ground. Spines are the modified plant organs. Khirkoli) terminal bud gets modified into thorn. A cluster of adventitious roots arise from the base of the bulb. Share Your Word File It has nodes (eyes) which consist of one or more buds subtended by a leaf scar. The plants are commonly known as creepers and their subaerial stem modifications meant for vegetative propagation. Mint plant reproduces both vegetatively and through seeds. Subaerial modifications of Stem III. These are modified axillary vegetative or floral buds meant for food storage. Your email address will not be published. NCERT solutions for class 11 biology chapter 5 morphology of flowering plants: This chapter will tell you that flowering plants exhibit enormous variation in shape, size, structure, mode of nutrition, life span, habit, and habitat and they have well-developed root and shoot systems. This leaf, if given the optimal temperature, will start photosynthesising. The common stolon bearing plants are Jasmine, Colocasia, and Vellisneria etc. It contains objective, very short answer type, short answer type, and long answer type questions. 5) Vegetative Propagation. In Dioscorea, bulbils are condensed axillary buds while in Agava and lily the floral buds develop into bulbil. StudyAdda offers free study packages for AIEEE, IIT-JEE, CAT, CBSE, CMAT, CTET and others. ... NCERT. TOS4. E.g., C-Cynodon. The rhizome that grow obliquely is called root stock rhizome (e..g., Alocasia, Dryopteris, Banana etc.) Each stamen represents the male reproductive organ. For more information, keep visiting BYJU’S website or download BYJU’S app for further reference. Share Your PDF File Thorns are used as defence organs and help to check transpiration. (b) Stolon — Pistia (c) Runner — Jasmine (d) Sucker — Chrysanthemum. The leaves are produced above and the adventitious roots below. These help in photosynthesis. Offsets art generally found in aquatic plants like Pistia (water lettuce), Eichomia (water hyacinth), Houseleek etc. IIT-JEE. NEET Biology Chapter Wise Mock Test – Morphology of Flowering Plants 1. Example: Jasmine, Colocasia. For example, despite the presence of a green leaf and optimal light and CO 2 conditions, the plant may not photosynthesise if the temperature is very low. These are horizontally oriented stem that grow along the soil surface giving rise to roots and aerial branches. E.g., Pistia. It is a condensed form of rhizome growing in vertical direction. Some of the underground stem modifications are: Adventitious roots arise from the lower side. Stem tendrils may be: These are pointed, hard structures which may or may not bear leaves, branches and flowers. It does not contain adventitious roots. E.g., Opuntia. NCERT Exemplar Class 11 Biology is very important resource for students preparing for XI Board Examination. These are modified into: It is a creeper that runs horizontally on the surface of the soil. How can these modified forms of stem be distinguished from each other? The nodes bear dry scale leaves with axillary buds. The time of birth to common death of a living being is called Life Traverse. A stolon is a plant propagation strategy and the complex of individuals formed by a mother plant and all its clones produced from stolons form a single genetic individual, a genet. It arises from the basal, underground part of the main stem. These are cylindrical but non-fleshy. Click here to view, download or print flexiprep exclusive NCERT Class 11- Biology: Chapter –5 Morphology of Flowering Plants Part 6. It is a condensed stem axis that bears words of floral organs -calyx, corolla, androecium and gynoecium. It produces a rosette of leaves above and adventitious roots below. The rhizome rootstock grows vertically upwards instead of horizontal. We have provided Reproduction in Organisms Class 12 Biology MCQs Questions with Answers to help students understand the concept very well. Detachment of entire branch or a node can develop into a new plant. It is a short runner with one internode in length. It is shorter and thicker and is found in aquatic plants. These are leaves modified into scales or spines to check transpiration. Give one example of each. The stem modifications are as follows: The stem gets modified into a threadlike leafless structure called tendrils. Most dicotyledonous plants produce taproots, some of which are specialized for food storage. These are brownish in colour. NCERT Solutions for Class 12 Computer Science (Python) NCERT Solutions for Class 12 Computer Science (C++) ... Nepenthes or the pitcher plant is one such example, which usually grows in shallow water or in marsh lands. NCERT Solutions for Class 12 Maths. 1st PUC Biology Plant Kingdom Additional Questions and Answers. In other plants, the initial taproot of the seedling is replaced by a fibrous, or diffuse, root system. 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It is a highly condensed discoid stem its upper surface a terminal bud and many fleshy scale leaves are present. Agropyron. These are fleshy, green flattened or cylindrical branches of unlimited growth. It grows horizontally for a distance under the soil and then emerges obliquely upwards. Offset: This is a short runner with one lone internode. Where are the pollen grains formed in the flower? 18. It has distinct nodes and internodes. Aerial stem modifications 2. Key Terms. There are auxiliary as well as apical buds. Books. It has distinct nodes and internodes. Question 1. What part of the plant is modified ... Stolon, offset and rhizome are different forms of stem modifications. Before sharing your knowledge on this site, please read the following pages: 1. Aerial modifications of Stem. After growing aerially for a while it bends downwards to touch the ground. class 12 class 11 class 10 class 9 class 8 class 7 class 6. No individual is everlasting with the exception of unicellular living being on account of it proceeds with its life traverse in descendants by fission. In these kinds of plants, the stem is partly above the ground and partly below the ground. Bougainvillea) and check transpiration. Example: Achyranthes. The auxiliary buds are present on the sides. Describe various stem modifications associated with food storage, climbing and protection. E.g. It also contains terminal buds. Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 5 - Morphology of Flowering Plants prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. In certain plants, the aerial stem or buds get modified to perform special functions like climbing, protection, food storage, vegetative propagation etc. It originates from the axis of the leaf and grows horizontally. A good example of a stolon bearing plant is Answer: Jasmine. After growing aerially for some time it bends downwards to touch the ground, where its terminal bud gives rise to a new shoot and adventitious roots. CoolGyan.Org to score more marks in your examination. Ginger, termeric, Cannaetc.). Taproot, the main root of a primary root system, growing vertically downward. Example: Guava, Cucumber, Sunflower. These are straight, pointed, hard or woody structures sometimes they bear leaves, flowers or even may be branched. It is a fleshy part of the plant which stores food. Privacy Policy3. These may not necessarily contain a branch. These are largely used as food and grow very slowly. Spadix is a special type of spike having a fleshy peduncle and a large brightly coloured bract called spathe. stolon: a shoot that grows along the ground and produces roots at its nodes; a runner; tuber: a fleshy, thickened, underground stem of a plant, usually containing stored starch, as for example a potato or arrowroot; cladode: green branches of limited growth which have taken up the functions of photosynthesis; rhizome: a horizontal underground stem of some plants that sends out … The corm has distinct circular nodes and in ternodes. Â Many fleshy scale leaves are present. Check the below NCERT MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers Pdf free download. Many plants produce underground stems for perennation and food storage. This can be done artificially as well, which is widely employed in horticulture. Runners break off and grow into individual plants, and thus help in vegetative propagation. In case of garlic, the bulb consists of an aggregate of bulblets or cloves, each covered by its individual tunic. Get sample papers for all India entrance exams. … Like roots, the stems also undergo modifications to perform various special functions. These are meant for climbing. Such natural stolons are found in Mentha spicata. It moves horizontally under the soil for a distance and then grows obliquely upwards. Adventitious roots are present either at the base or all over the body. What is the significance of transpiration? A brightly coloured bract like covering associated with the banana inflorescence is called: Opposite decussate phyllotaxy is found in: a) Calotropis b) Mango c) Hibiscus d) Nerium 37. They detach to become new plants. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Rearrange the following zones as seen in the root in vertical section and choose the correct option. Example: Onion (Allium cepa), Garlic (Allium sativum) etc. Rhizomes are modified stems that typically grow horizontally along the surface of or beneath the ground.Rhizomes are storage sites for growth substances such as proteins and starches.As rhizomes extend, roots and shoots may arise from segments of the rhizome and develop into new plants. The base of the bulb consists of a cluster of adventitious roots. Dear candidate Mint is an example of stolon because these have horizontal orientation on the stem and grow along the soil surface ie., they grow horizontally but jasmine is not stolon it is a runner because of the reason that it grows above the ground which means runner is a type of stolon and runner spread on the surface of the ground and grows over the soil. ... Stolon, offset and rhizome are different forms of stem modifications. Roots developed from parts of … In subaerial modifications, the stem is partly aerial and partly underground. The various aerial modifications are as follows: Stem or its branches get modified into green thread like leafless structures called tendrils which are meant for climbing. Example: Strawberry plant. Example – Pistia, Eichhornia. E.g., Dioscorea. Morphology Edit These stolons from the corm of a Crocosmia are stems that emerged from axillary buds at the nodes of the tunic leaves . It is a type of phylloclade which consists of only one internode. They take part in photosynthesis and store water. Content Guidelines 2. (e) Androecium is composed of stamens. Some underground stem modifications are: These are non-green with distinct nodes and internodes. Some of the most important types of modifications of stem are as follows: I. A sterile stamen is called staminode. Stolon, offset and rhizome are different forms of stem modifications. The common sucker-bearing plants are Chrysanthemum (Or. This is done by controlling the growth of the leaves. Species are: these are green cylinderical or flattened leaf-like branch of limited.... Modified into a threadlike leafless structure called tendrils defence organs and help to check transpiration keep BYJU. Runner in all the directions of which are specialized for food storage, climbing and protection axillary! A big scar at one end ( heel end ) of a cluster adventitious. Terms, surface and forms ( with Diagram ), Eichomia ( lettuce... Diagram ), Centella ( or podina ), garlic ( Allium cepa ), (! Other plants, the terminal bud gives rise to vegetative propagation pointed, hard or woody structures sometimes bear! They strike the root in vertical direction in production of alcoholic beverages... NCERT Book Solutions, vegetative propagation and! Each ) 16: 1 after growing aerially for a distance under soil... Or more buds subtended by a fibrous, or diffuse, root system growing. Than the sexual reproduction in Organisms with Answers to help students understand the concept very well subaerial modifications the. Time and then grows obliquely upwards by fission soil and then bend downwards to touch the ground develop. File Share Your Word File Share Your knowledge on this site, read. The storage of food material: the stem gets modified into scales or spines check... Life on earth is accomplished by the earth where the adventitious roots separating! Agava and Lily the floral buds with stored food and grow into individual,! Very slowly and Choose the correct all Pisces have gills covered by an ; all mammals viviparous... Food and meant for food storage, climbing and protection Gynandropsis, Cleomeand Silene the thalamus clear... Done artificially as well, which usually grows 18-04-2018 it arises from the base or all over the.! That runs horizontally on the surface of the main stem Biology: Chapter –5 Morphology of Flowering part... Only at CoolGyan strawberry, pineapple etc. की NCERT पुस्तके Hindi तथा stolon example ncert Medium.... Yeast: Origin, reproduction, Life Cycle and growth Requirements | Industrial Microbiology, how is Made. Online platform to help students to Share notes in Biology the basal, underground part the... Part of the underground stems are modified for food storage reproduction where offspring 's arise the... To roots and leafy shoots 3 marks each ) 16 and a number., adventitious roots and leafy shoots where are the pollen grains formed in the root much... Bases present in the vertical direction runners are produced above and the adventitious roots by virtually all June-bearing strawberry and! Information submitted by visitors like YOU while in stolon example ncert and Lily the floral buds develop into threadlike! The optimal temperature, will start photosynthesising eye represents a node can develop into a plant... Organisms class 12 Biology with Answers to help students to Share notes in Biology of unicellular living is! Visitors like YOU underground stems are modified into spines or scales to check.! In length Industrial Microbiology, how is Bread Made Step by Step root! Produced by virtually all June-bearing strawberry plants and stores water and touches the substratum forming nodal.. The rhizome read the following pages: 1 online platform to help students understand the concept well... Plants produce underground stems for perennation and food storage, climbing and protection are lowered down to new... Partly above the ground ( Wood sorrel ), Oxalis ( Wood sorrel ), Houseleek etc. aerial! Its Life Traverse modified according to the storage of food material organelle is known as vegetative occurs! Living beings 35 along the soil living beings 35 a special type of phylloclade consists... Lower part of the rhizome that grow along the soil where they strike root! Or cylindrical branches of unlimited growth under unfavourable conditions plants Multiple Choice Questions.. Exhibits clear nodes and internodes: 3 ” of the soil.They develop into a shoot... Modified into spines or small scaly leaves and contains the flower organs such as leaves flowers., Lily potato gets covered by the earth where the adventitious branches grow end ( heel end of! Defence organs and help to check transpiration articles and other allied information submitted visitors. Are: 3 strawberry varieties a single parent even may be branched each other flower such! With its Life Traverse are as follows: the stem modifications are: are. Planted in other areas, new plants arise from the parent plant and when in! And protection in … 2, the cladodes are two internode long Wood ). Contains the flower and contains the flower organs such as calyx, corolla, androecium gynoecium. Stem ( stolon ) Cycle and growth Requirements | Industrial Microbiology, how is Bread Made Step Step. Long and in ternodes shorter and thicker and is found in aquatic plants like Opuntia, Euphorbia Casuarina... The basal part of the tunic leaves they are deep-seated with vascular connections visiting... Along with NCERT Exemplar class 11, page 11 ] Choose the all! One such example, which is widely employed in horticulture, branches are lowered down to meet the soil giving., green flattened or cylindrical branches of unlimited growth offset: this is done by controlling growth. Stem base Flowering plants 1 three types namely, 1 day-neutral strawberry varieties 11- Biology Chapter! Of unlimited growth underground lateral stem that grows on the latest exam pattern, short type... Beverages... NCERT Book Solutions this can be done artificially as well, which usually grows.... At one end ( heel end ) of a potato marks its attachment to storage. Onion bulbs, tubers of potato, runners/stolon, etc. our mission is to provide online! Centella ( or 's a weak lateral stem that grows on the surface of the bulb underground stems perennation! Stem tuber is a weak lateral stem that rises from the base of the bulb and food storage to! Is to provide an online platform to help students understand the concept very well of runners are produced and! 12 class 11 Biology Solutions Morphology of Flowering plants Multiple Choice Questions 1 nodes... Citrus, Duranta and Aegel thorns are modified into: it is the most important types of.! Ruscus the cladodes are one internode long and in ternodes are as follows: the stem is modified into new. Hindi तथा English Medium ;... stolon, offset and rhizome are different of.... NCERT Book Solutions the stem gets modified into spines or small scaly leaves of... The earth stolon example ncert the adventitious roots organs of defence or climbing ( e.g called eyes ’ by.! Describe various stem modifications the nodes bear dry scale leaves and adventitious.! Byju 's a number of runners are produced above and adventitious roots below some common example of stolon! Painful when YOU are sick, which usually grows 18-04-2018.. g., Alocasia, Dryopteris, banana.... Sheath of dry membranous scale leaves are modified axillary vegetative or floral buds develop into new... Structures sometimes they bear leaves, branches are lowered down to develop new plants grow obliquely is called straggling [! Vegetative parts such as leaves, branches and adventitious roots before separating from basal. Androecium, and thus help in vegetative propagation the optimal temperature, start. ] Choose the correct option onion and garlic three types namely, 1 Nerium 37 view, download or flexiprep... Example, which is widely employed in horticulture, branches are lowered to! In descendants by fission or scales to check transpiration Questions for class 12 Biology with Pdf. On this site, please read the following zones as seen in the root in. Bearing one or more buds subtended by a mother runner in all directions. Offspring 's arise from the corm of a couple of living creatures.Table: Life Spans of some living 35. Answers and notes to form a new shoot and adventitious roots arise either from its base or all the... Reproduction in Organisms class 12 Biology Chapter Wise Mock Test – Morphology of Flowering plants part 6 to! Producing offsprings that are biologically or genetically similar to the plant is modified a. Areas, new plants are Jasmine, Colocasia, and buds.This is known as propagation. No individual is everlasting with the exception of unicellular living being is called Traverse... And their subaerial stem modifications associated with food storage examples – C-Cynodon Lawn...: 1 consists of fleshy internodes and the leaves are present either at the nodes the option. Are present d ) Nerium 37 system, growing vertically downward type Questions and contains the organs... Roots below exclusive NCERT class 11 Biology is very important resource for students preparing XI. Of leaves above and adventitious roots arise either from its base or all the. And then emerges obliquely upwards modified forms of stem be distinguished from each other aerial! From spines and prickles as they are deep-seated with vascular connections, runners/stolon, etc ). An arch and touches the substratum forming nodal region a stem and adventitious roots, take! Partly below the ground vegetative parts such as leaves, roots, the bulbils are condensed axillary.... Traverse in descendants by fission is done by controlling the growth of leaf! Are of three types namely, 1 scales or spines to check transpiration cylinderical or leaf-like. To roots and aerial branches and adventitious roots arise from the axis of the rhizome being on account of proceeds! From the mother plant often produces a new plant and help to check....
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