Botany-Growth Regulators

NEET Botany Growth Regulators MCQ Question

Type: MCQ-conceptual-Hard-Class 11

Which of the following combinations correctly describes the roles and functions of plant growth regulators?

A

Gibberellins promote stem elongation; Auxins stimulate root development; Cytokinins inhibit cell division.

B

Cytokinins promote cell division; Gibberellins are involved in seed germination; Abscisic acid promotes growth.

C

Auxins regulate fruit development; Gibberellins delay flowering; Abscisic acid is a stress hormone.

D

Gibberellins inhibit germination; Auxins are responsible for leaf abscission; Cytokinins enhance root growth.

Correct Answer

Option C

Detailed Explanation

Gibberellins are known to regulate processes such as seed germination and stem elongation, while auxins are involved in fruit development. Abscisic acid functions as a stress hormone, particularly under adverse conditions, which accurately depicts option C.

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