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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA. | 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyList 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | 2, 4-D | 2. | GA3 |
3. | Kinetin | 4. | Ethylene |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyList - I | List - II | ||
(A) | Auxin | (I) | Promotes female flower formation in cucumber |
(B) | Gibberellin | (II) | Overcoming apical dominance |
(C) | Cytokinin | (III) | Increase in the length of grape stalks |
(D) | Ethylene | (IV) | Promotes flowering in pineapple |
Options: | (A) | (B) | (C) | (D) |
1. | II | I | IV | III |
2. | IV | III | II | I |
3. | I | III | IV | II |
4. | III | II | I | IV |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | kill dicotyledonous weeds in the fields |
2. | speed up the malting process |
3. | promote root growth and root hair formation to increase the absorption surface |
4. | help overcome apical dominance |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyProduction of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in plants?
1. | Cytokinin | 2. | ABA |
3. | Gibberellin | 4. | Ethylene |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch 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) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIt takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
1. Cytokinin and Abscisic acid
2. Auxin and Ethylene
3. Gibberellin and Cytokinin
4. Gibberellin and Abscisic acid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich hormone is responsible for fruit ripening:
1. Ethylene
2. Auxin
3. Ethyl chloride
4. Cytokinin
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology