Match the following Column-I Plant Column-II Vegitative reproduction by (a) Turmeric (i) Stolon (b) Crocus (ii) Rhizome (c) Vallisneria (iii) Aerial shoot (d) Opuntia (iv) Corm

a - ( ii ) , b - ( iv ) , c - ( i ) , d - ( iii )

a - ( i ) , b - ( i v ) , c - ( i i i ) , d - ( i i )

a - ( i v ) , b - ( i i ) , c - ( i i i ) , d - ( i )

a - ( i i ) , b - ( i ) , c - ( i v ) , d - ( i i i )

Match the modification of stem given column I, with their respective examples given the column II: Column I (Stem modification) Column II (Plants) (i) Stolon (a) Water hyacinth (ii) Runner (b) Mint (iii) Offset (c) Grape wine (iv) Tendril (d) Opuntia (v) Thorn (e) Doob grass (vi) Phylloclade (f) Rose

(i) - (b) A stolen grows upwards above the ground at some distance and then bends down towards the ground, they form adventitious roots at the nodes. Mint and wild strawberries are examples os stolens. (ii) - (e) Doob grass is an example of a runner. Runners have soft and thin slender branches which creep on the ground. (iii) - (a) Water hyacinth is an example of the offset. It is a sub-aerial modification of stem, which look like runners, but they arise from the axil of the leaf and have thick internodes. (iv) - (c) In grape wine, the stem is modified to form a thin thread-like leafless branch called a tendril. It coils around any object and helps the plant to climb up. (v) - (f) The thorn of a rose is the aerial modification of a stem. It protects the plants from grazing animals. (vi) - (d) Opuntia is an example of a phylloclade. In opuntia, the stem is thick, flat, green and with nodes and internodes. In such types of stems, the food is prepared by the stem and the leaves are modified to spines to prevent the loss of water that usually takes place by transpiration. Column I (Stem modification) Column II (Plants) (i) Stolon (b) Mint (ii) Runner (e) Doob grass (iii) Offset (a) Water hyacinth (iv) Tendril (c) Grape wine (v) Thorn (f) Rose (vi) Phylloclade (d) Opuntia

EASY

Earn 100

Explain the vegetative propagation of stolons.

Important Questions on Structural Organisation in Plants

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

In Bougainvillea, thorns are the modifications of:

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

An example of edible underground stem is:

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Offsets are produced by

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Name some plants reproduced by offsets.

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Write a note on stolon.

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Match the following

	Column-I Plant		Column-II Vegitative reproduction by
(a)	Turmeric	(i)	Stolon
(b)	Crocus	(ii)	Rhizome
(c)	Vallisneria	(iii)	Aerial shoot
(d)	Opuntia	(iv)	Corm

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Define sucker plants.

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Offset in a plant helps in

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Parts of two plants were observed, structure

A

developed aerially and produces roots when comes in contact with the soil. Structure

B

develops from underground part of the stem, grows obliquely becomes aerial and produces roots on its lower surface. Identify, respectively the structures of

A

and

B

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

How does the sucker of Chrysanthemum differ from the stolon of jasmine?

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Write a note on sucker.

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Short horizontal branch which is one internode long and produces a cluster of leaves above and cluster of roots below is called :-

EASY

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

Mention the function of stolons in plants.

MEDIUM

Biology>Structural Organisation in Plants and Animals>Structural Organisation in Plants>Stem Morphology and Modification

This plant was introduced in India because of its beautiful flowers and shape of leaves but it became a notorious weed in Indian water bodies. Identify this plant.
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