List-I | List-II | ||
A. | Ethylene | I. | Increase length of stem |
B. | Cytokinins | II. | Promotion of senescence and abscission |
C. | ABA | III. | Delaying leaf senescence |
D. | Gibberellins | IV. | Inhibition of seed germination |
A. | All GAs are acidic in nature. |
B. | Auxins are antagonists to GAs. |
C. | Zeatin was isolated from coconut milk. |
D. | Ethylene induces flowering in Mango. |
E. | Abscisic acid induces parthenocarpy. |
1. | A,C,D | 2. | B,E |
3. | A,B,C | 4. | B,D,E |
List I | List II | ||
A. | Abscisic acid | I. | Promotes female flowers in cucumber |
B. | Ethylene | II. | Helps seeds to withstand desiccation |
C. | Gibberellin | III. | Helps in nutrient mobilisation |
D. | Cytokinin | IV. | Promotes bolting in beet cabbage etc |
Which hormone is used to induce immediate stomatal closure in leaves?
1. Cytokinin
2. Gibberellin
3. Abscisic Acid
4. Auxin
Match the following concerning the activity/function and the phytohormone involved:
Column I | Column II | ||
(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:
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (iii) | (iv) | (i) |
2. | (iii) | (iv) | (ii) | (i) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iv) | (ii) | (i) | (iii) |