Decreased levels of bile salts in the bile would interfere with digestion of:

Correct Answer: A

Rationale: Bile salts emulsify fats, breaking them down into smaller droplets to facilitate digestion by lipase enzymes.

Correct Answer: D

Rationale: Crypts of Lieberkuhn secrete succus entericus (intestinal juice) for digestion in the small intestine.

Correct Answer: B

Rationale: Insulin is secreted by β-cells in the Islets of Langerhans.

Correct Answer: C

Rationale: The stomach churns food with gastric juice to form chyme.

Correct Answer: B

Rationale: The liver deaminates excess amino acids and converts them into urea.