MarksRiser
MarksRiser
Zoology-Endocrine Glands

NEET Zoology Endocrine Glands MCQ Question

Type: MCQ-numerical-Medium-Class 11

If the pineal gland's secretion of melatonin is disrupted, which of the following 24-hour rhythms in the body might be affected first?

A

Sleep-wake cycle

B

Body temperature regulation

C

Basal metabolic rate

D

Calcium regulation

Correct Answer

Option A

Detailed Explanation

According to the NCERT context, the pineal gland secretes melatonin, which is crucial for regulating the body's 24-hour (diurnal) rhythms, particularly the sleep-wake cycle.

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