Zoology-Hormone Action Mechanism
NEET Zoology Hormone Action Mechanism MCQ Question
Type: MCQ-conceptual-Hard-Class 11
If a hormone that interacts with membrane-bound receptors generates cyclic AMP as a second messenger, what is the immediate effect on the target cell's metabolism?
A
Activation of protein kinases
B
Inhibition of gene expression
C
Direct entry of hormone into the cell
D
Increase in intracellular calcium levels
Correct Answer
Option A
Detailed Explanation
Hormones that interact with membrane-bound receptors generate second messengers like cyclic AMP, which in turn activate protein kinases to regulate cellular metabolism.
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