EASY
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How many plants contain alternate phyllotaxy from given examples?

Alstonia, China rose, Guava, Mustard, Calotropis and Sunflower.

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Important Questions on Morphology and Modifications

EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Leaves become modified into spines in:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Which of the following is not a stem modification?
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Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
In Alstonia the type of Phyllotaxy is:
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Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>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 and Modifications>Leaf
Which one of the following is a modified leaf?
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Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>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:

EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Parallel venation occurs in
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Whorled, simple leaves with reticulate venation are present in
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf

Pinnately compound leaf is found in

MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Mustard contains:
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Flower and lateral branches arise from the
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Eye of potato is
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Free lateral stipules occur in
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Phyllode is present in
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
An insectivorous plant having glandular structures on its leaf secreting sticky fluid is
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Which of the following is the main adaptation for a plant to survive in xerophytic condition?
HARD
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Match column I with column II and select the correct answer.
Column I Column II
A. Acacia 1. Phylloclade
B. Opuntia 2. Offset
C. Pineapple 3. Phyllode
D. Pistia 4. Sucker
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Leaves become modified into spines in
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Main function of leaf is to
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Leaf
Which is not a modification of stem?