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Two chief functions of leaves are:

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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

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
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
Leaves become modified into spines in:
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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
Identify the structure which represents homology in the following picture.

Question Image
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
 Match I with II and select the correct option from the given codes
  I   II
(a) Vegetative buds (i) Buds develop in axils of leaves
(b) Floral buds (ii) Buds produce leafy shoots
(c) Axillary buds (iii) Reproductive buds that produce flowers
(d) Accessory buds (iv) Additional buds borne at leaf bases
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Select the CORRECT statement from the following:

P In monocots, leaf base expands into a sheath covering the stem partially or wholly

Q In all leguminous plants, the leaf base may become swollen, which is called the pulvinus

R The lamina or leaf blade is the green expanded part of the leaf with vein and veinlets

S Veins provide rigidity to leaf blade
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
During the formation of leaves and elongation of the stem, some cells ‘left behind’ from shoot apical meristem; they are known as
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Select the incorrect statement about leaves.
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Which of the following statement is correct about a leaf?
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Main function of leaf is to
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
One can distinguish a leaflet from the leaf by the absence of
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Leaf tendril is not seen in
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf

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}

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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
List out the four primary functions of leaves.
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Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Leaf
Define the term bud. Write the basis of their classification and name their types.