Zoology-Hormone Action Mechanism

NEET Zoology Hormone Action Mechanism MCQ Question

Type: MCQ-conceptual-Easy-Class 11

Which of the following statements about hormone action mechanisms is correct?

A

Hormones that interact with membrane-bound receptors generate second messengers to regulate cellular metabolism.

B

All hormones directly enter the target cell to exert their effects.

C

Steroid hormones primarily act through second messengers to alter gene expression.

D

Hormones that do not enter the cell can still regulate gene expression.

Correct Answer

Option A

Detailed Explanation

Hormones that interact with membrane-bound receptors do not enter the target cell but generate second messengers like cyclic AMP, which regulate cellular metabolism. This aligns with the description of hormone action mechanisms in the NCERT context.

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