Match the following lists. List-I List-II List-III A China Rose i Acropetal succession I Branched peduncle B Colocasia ii Mesocarp is fleshy II Hypogynous C Panicle iii Alternative phyllotaxy III Epigynous D Cucumber iv Neuter flowers IV Corm The correct match is:

A B C D iii, II iv, IV i, I ii, III

A B C D i, IV ii, II iv, I iii, III

A B C D ii, II iii, III i, I iv, IV

A B C D iii, I ii, IV iv, III i, II

The portion by means of which the leaf is attached to the stem is called leaf base. Sometimes, the leaf base becomes swollen to form a sort of cushion is called a pulvinus. Examples: Mimosa , mango, etc.

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Which part of leaf is sensitive to sleep and shock movements?

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Important Questions on Morphology of Flowering Plants

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

In Alstonia the type of Phyllotaxy is:

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Tendrils are modifications of

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Which one of the following is a modified leaf?

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Match the following lists.

	List-I		List-II		List-III
A	China Rose	i	Acropetal succession	I	Branched peduncle
B	Colocasia	ii	Mesocarp is fleshy	II	Hypogynous
C	Panicle	iii	Alternative phyllotaxy	III	Epigynous
D	Cucumber	iv	Neuter flowers	IV	Corm

The correct match is:

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Which of the following is not a stem modification?

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Consider the following morphological biochemical or physiological characteristics of plants.

$i .$ Presence of hairy leaves $ii$ $.$ Production of more nectar is flower
$iii .$ . High sugar content in plant parts $iv .$ Presence of higher aspartic acid concentration.

Choose the correct combination of statements which give natural resistance to plants against insect pests:

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Assertion (A): In Nepenthes leaves are modified to trap insects
Reason (R): Insectivorous plants trap insects for their nitrogen requirement

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Leaves become modified into spines in:

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Leaf base is sheathing in

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Which of the following statement is incorrect?

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Label the parts X and Y in the given image.

Question Image

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

What is sheathing leaf base.

MEDIUM

Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

Study the following lists:

	List-I		List-II
A	Entire leaf modified into a spine	(I)	Clematis
B	Leaf except stipules modified into a tendril	(II)	Citrus
C	Stipules modified into a tendril	(III)	Euphorbia
D	First leaf of axillary bud modified into a spine	(IV)	Lathyrus
		(V)	Smilax