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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