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

Define sucker plants.

Important Questions on Reproduction and Modification in Plants

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

An example of edible underground stem is:

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

In Bougainvillea, thorns are the modifications of:

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Offsets are produced by

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Explain the vegetative propagation of stolons.

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Write a note on stolon.

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Name some plants reproduced by offsets.

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Offset in a plant helps in

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Write a note on sucker.

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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

EASY

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

Mention the function of stolons in plants.

MEDIUM

Science>Biology>Reproduction and Modification in Plants>Modification of Stems

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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