Nokea
Na+ and other carrier ions facilitate absorption of
- A. Amino acids and fructose
- B. Fatty acids and glycerol
- C. Fatty acids and glucose
- D. Amino acids and glucose
Correct Answer: D
Rationale: Sodium ions (Na+) facilitate the absorption of amino acids and glucose through symport mechanisms.
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Water absorption mainly occur in :-
- A. Buccal cavity
- B. Intestine
- C. Stomach
- D. Appendix
Correct Answer: B
Rationale: The intestine, especially the large intestine, is the primary site for water absorption.
Which of the following is not a major gastrointestinal hormone?
- A. epinephrine
- B. secretin
- C. gastrin
- D. cholecystokinin
Correct Answer: A
Rationale: Epinephrine is not a gastrointestinal hormone; it is primarily involved in the sympathetic nervous system.
Amylase enzyme acts on starch and convert it into-
- A. Maltose
- B. Glucose
- C. Fructose
- D. Galactose
Correct Answer: A
Rationale: Amylase breaks down starch into maltose, a disaccharide.
Which of the following secretions is NOT produced by gastric glands?
- A. hydrochloric acid
- B. intrinsic factor
- C. pepsin
- D. sebum
Correct Answer: D
Rationale: Sebum is an oily substance produced by sebaceous glands in the skin, not by gastric glands, which secrete HCl, intrinsic factor, and pepsin.
The hormone involved in the discharge of pancreatic juice in mammal is called-
- A. Gastrin
- B. Secretin
- C. Secretin & CCK
- D. Enterogasterone
Correct Answer: C
Rationale: Both secretin and CCK stimulate pancreatic juice secretion.