Choose the answer which lists the correct order of the digestion process.
- A. A, C, D, B
- B. C, D, A, B
- C. C, A, D, B
- D. D, C, A, B
Correct Answer: B
Rationale: The correct order is: Food is ingested (C), digested (D), nutrients absorbed (A), and undigested food eliminated (B).
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Which structure is the uppermost part of the alimentary canal or gastrointestinal (GI) tract?
- A. Esophagus
- B. Liver
- C. Cecum
- D. Sigmoid
Correct Answer: A
Rationale: The alimentary canal begins at the mouth, followed by the esophagus, making the esophagus the uppermost structure listed.
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 describes one function of the stomach?
- A. To introduce carbohydrates to food.
- B. To remove excess water from food.
- C. To temporarily store food.
- D. To absorb nutrients into the bloodstream.
Correct Answer: C
Rationale: The stomach temporarily stores food, mixing it with gastric juices for digestion.
All about Bile is true EXCEPT:
- A. Formed by gall bladder
- B. Formed by hepatocytes
- C. Concentrated in gall bladder
- D. Discharged into duodenum under effect of cholecystokinin.
Correct Answer: A
Rationale: Bile is formed by hepatocytes, not the gallbladder, which only concentrates and stores it.
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.