In addition to GH, is/are essential for normal growth.

Correct Answer: D

Rationale: All listed hormones support growth (e.g., insulin aids metabolism, thyroid hormone aids development).

Correct Answer: D

Rationale: Somatostatin inhibits insulin secretion from β cells. CCK, amino acids, glucagon, and glucose stimulate it.

Correct Answer: C

Rationale: Aldosterone is secreted by the zona glomerulosa of the adrenal cortex.

Correct Answer: D

Rationale: Prostaglandin E inhibits hormone-sensitive lipase, reducing lipolysis, while adrenaline, thyroxine, and TSH stimulate it; serotonin has minimal direct effect.

Correct Answer: D

Rationale: Most amino acids are absorbed via Na^+-dependent transporters in the gut lumen; pepsinogens need acid, and carboxy peptidases are distinct enzymes.