Match List-I with List-II

| List-I (Growth Regulator) | List-II (Function/Effect) |
|---|---|
| A. 2,4-D | I. Brewing industry |
| B. $\mathrm{GA}_3$ | II. Stimulation of stomatal closure |
| C. Kinetin | III. Herbicide |
| D. ABA | IV. Nutrient mobilisation |

Choose the correct answer from the options given below :

Question

Match List-I with List-II

| List-I (Growth Regulator) | List-II (Function/Effect) |
|---|---|
| A. 2,4-D | I. Brewing industry |
| B. $\mathrm{GA}_3$ | II. Stimulation of stomatal closure |
| C. Kinetin | III. Herbicide |
| D. ABA | IV. Nutrient mobilisation |

Choose the correct answer from the options given below :

Accepted Answer

A. 1. **Match 2,4-D with its use**: 2,4-D is a synthetic auxin widely sprayed on fields to kill broad-leaved weeds.
So,
$$
	ext{2,4-D} ightarrow 	ext{Herbicide (III)}
$$

2. **Match $\mathrm{GA}_3$ with its industrial use**: gibberellic acid is used to speed up the malting process in the **brewing industry** by promoting amylase production in barley seeds.
Therefore,
$$
\mathrm{GA}_3 ightarrow 	ext{Brewing industry (I)}
$$

3. **Match Kinetin with its physiological role**: kinetin is a cytokinin that helps in mobilizing nutrients from other parts of the plant toward the site where it is applied, thereby delaying senescence.
Hence,
$$
	ext{Kinetin} ightarrow 	ext{Nutrient mobilisation (IV)}
$$

4. **Match ABA with its stress response role**: abscisic acid increases in concentration during water stress and causes the closure of stomata to reduce water loss through transpiration.
So,
$$
	ext{ABA} ightarrow 	ext{Stimulation of stomatal closure (II)}
$$

Hence, the correct matching is **A-III, B-I, C-IV, D-II**, so the answer is **A**.

List-I (Growth Regulator)	List-II (Function/Effect)
A. 2,4-D	I. Brewing industry
B. $\mathrm{GA}_3$	II. Stimulation of stomatal closure
C. Kinetin	III. Herbicide
D. ABA	IV. Nutrient mobilisation

Match List-I with List-II List-I (Growth Regulator)List-II (Function/Effect)A. 2,4-DI. Brewing industryB. GA3\mathrm{GA}_3GA3​II. Stimulation of stomatal closureC. KinetinIII. HerbicideD. ABAIV. Nutrient mobilisation Choose the correct answer from the options given below :

Match List-I with List-II

List-I (Growth Regulator) List-II (Function/Effect)
A. 2,4-D I. Brewing industry
B. $\mathrm{GA}_3$ II. Stimulation of stomatal closure
C. Kinetin III. Herbicide
D. ABA IV. Nutrient mobilisation

Choose the correct answer from the options given below :