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Zoology-Endocrine Glands

NEET Zoology Endocrine Glands MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which combination of statements about endocrine glands is correct?

A

The pituitary gland secretes only one hormone. 2. Pineal gland regulates 24-hour rhythms. 3. Thyroid hormones regulate metabolism.

B

The pituitary gland secretes multiple hormones. 2. Pineal gland secretes melatonin. 3. Thyroid hormones are involved in calcium regulation.

C

The thyroid gland regulates blood pressure. 2. The parathyroid gland regulates calcium levels. 3. Estrogens are produced in the thyroid gland.

D

The adrenal gland secretes hormones that regulate metabolism. 2. The pancreas is a primary endocrine gland. 3. Progesterone supports pregnancy.

Correct Answer

Option B

Detailed Explanation

The pituitary gland secretes multiple hormones, and the pineal gland indeed secretes melatonin, which regulates 24-hour rhythms. Thyroid hormones play a significant role in metabolism but are not primarily involved in calcium regulation; that is the role of parathyroid hormones.

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