- 1(current)
Q. No.Match the following concerning the activity/function and the phytohormone involved:-
| (a) | Fruit ripener | (i) | Abscisic acid |
| (b) | Herbicide | (ii) | GA 3 |
| (c) | Bolting agent | (iii) | 2, 4-D |
| (d) | Stress hormone | (iv) | Ethephon |
Select the correct option from following:-
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iv) | (ii) | (i) | (iii) |
Subtopic: Growth Hormones & Auxin | Gibberellin | Ethylene | Abscisic Acid |
93%
Level 1: 80%+
Hints
Identify the incorrectly matched pair:
| PGR | Function | |
| 1. | Auxin | Inhibition of growth of lateral buds |
| 2. | Gibberellin | Promotion of bolting in plants with rosette habit |
| 3. | Cytokinin | Help overcome apical dominance |
| 4. | ABA | Ripening of fruits |
Subtopic: Abscisic Acid |
89%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
Choose the correct option.
| Assertion (A): | Gibberellic acid (GA) promotes plant growth, while abscisic acid (ABA) generally inhibits it. |
| Reason (R): | GAs are terpenes and ABA is carotenoid. |
| 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: Gibberellin | Abscisic Acid |
87%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Match the following plant hormones with their primary functions:
| Column I | Column II | ||
| 1 | Cytokinins | A | Stimulates fruit ripening |
| 2 | Abscisic acid | B | Inhibits shoot growth and promotes seed dormancy |
| 3 | Ethylene | C | Promotes cell division in plant tissues |
| 4 | Gibberellins | D | Stimulates growth and elongation of stems and leaves |
| 1. | 1-C, 2-B, 3-D, 4-A |
| 2. | 1-D, 2-C, 3-B, 4-A |
| 3. | 1-B, 2-D, 3-C, 4-A |
| 4. | 1-C, 2-B, 3-A, 4-D |
Subtopic: Gibberellin | Cytokinin | Ethylene | Abscisic Acid |
93%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Identify the plant growth regulator that is not correctly matched to its chemical nature in the following given options:
|
|
PGR |
Chemical nature |
|
1. |
Ethylene |
Gaseous |
|
2. |
Adenine derivatives |
Kinetin |
|
3. |
Indole compounds |
Auxins |
|
4. |
Terpenes |
Abscisic acid |
Subtopic: Abscisic Acid |
79%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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