Select Question Set:
Q. No.
Assertion(A): ABA is one of the most widely used PGRs in agriculture.
Reason(R): Ethylene regulates many physiological processes.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Ethylene | Abscisic Acid |
73%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): The development of plants could be flexible.
Reason(R): Differentiation in plants is closed.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Differentiation in plants is closed.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Seed Dormancy (OLD NCERT) |
85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Expansion of leaf is growth.
Reason(R): Growth is reversible permanent increase in size of an organ or its parts.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Growth is reversible permanent increase in size of an organ or its parts.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Growth |
83%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Growth, at an organ level, is principally a consequence of the increase in the amount of protoplasm.
Reason(R): The increase in protoplasm is difficult to measure directly.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The increase in protoplasm is difficult to measure directly.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Growth |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): ABA is called stress hormones.
Reason(R): ABA stimulates the opening of the stomata.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): ABA stimulates the opening of the stomata.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Abscisic Acid |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): In an organism anabolism and catabolism take place simultaneously.
Reason (R): Senescence occurs when there is an increase in the rate of anabolism with respect to catabolism.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Senescence occurs when there is an increase in the rate of anabolism with respect to catabolism.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Growth | Development |
55%
Please attempt this question first.
Hints
Which of the following plant parts perceives the photoperiod in plants?
1. meristem
2. flower
3. floral buds
4. leaves
1. meristem
2. flower
3. floral buds
4. leaves
Subtopic: Photoperiodism (OLD NCERT) |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Apical dominance in plants can be overcome by the application of the PGR:
1. Cytokinin
2. Ethylene
3. ABA
4. Gibberellins
1. Cytokinin
2. Ethylene
3. ABA
4. Gibberellins
Subtopic: Cytokinin |
85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Spraying sugarcane crops with which of the following plant growth regulators increases the stem's length, thus increasing the yield by as much as 20 tonnes per acre?
1. Auxins
2. Gibberellins
3. Cytokinins
4. ABA
1. Auxins
2. Gibberellins
3. Cytokinins
4. ABA
Subtopic: Auxin Function |
90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In plants:
I: Growth is open
II: Differentiation is open
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: Growth is open
II: Differentiation is open
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Growth |
76%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.