Which enzyme works in highly acidic pH

ATI RN

ATI RN Test Bank

A. Pepsin B. Lipase C. Erepsin D. Amylopsin

Correct Answer: A

Rationale: Pepsin functions optimally in the highly acidic pH of the stomach (around 1.8-2).

Succus entericus is secreted by-

A. Gastric glands B. Islets of Langerhans C. Crypts of Lieberkuhn & Brunner's gland D. Goblet cells

Correct Answer: C

Rationale: Succus entericus is secreted by Crypts of Lieberkuhn and Brunner's glands.

A carbohydrate splitting enzyme is secreted by -

A. Liver B. Zymogen cells of gastric glands C. Spleen D. Crypts of Lieberkuhn

Correct Answer: D

Rationale: Crypts of Lieberkuhn secrete enzymes like maltase that split carbohydrates.

Which food substance is absorbed, without digestion?

A. Carbohydrates B. Proteins C. Vitamins D. Fats

Correct Answer: C

Rationale: Vitamins are absorbed without digestion, unlike macronutrients.

Fully digested food reaches to liver by

A. Hepatic portal vein B. Hepatic artery C. Hepatic vein D. All the above

Correct Answer: A

Rationale: Nutrients from digested food reach the liver via the hepatic portal vein.

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