Nokea
What happens during defecation?
- A. Food is chewed
- B. Nutrients are absorbed
- C. Chyme is formed
- D. Undigested waste is expelled
Correct Answer: D
Rationale: Defecation is the final stage where undigested waste (feces) is eliminated via the anus.
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Lactose composed of :-
- A. Glucose + galactose
- B. Glucose + fructose
- C. Glucose + glucose
- D. Glucose + mannose
Correct Answer: A
Rationale: Lactose is a disaccharide made of glucose and galactose.
pH of stomach in human is about-
- A. 7
- B. 1.8
- C. 8
- D. 11
Correct Answer: B
Rationale: The stomach's pH is approximately 1.8 due to the secretion of hydrochloric acid, creating an acidic environment for digestion.
A gastrointestinal tumor involving villi and plicae circulares might interfere with:
- A. deglutition
- B. absorption
- C. peristalsis
- D. defecation
Correct Answer: B
Rationale: Villi and plicae circulares increase the surface area for absorption in the small intestine. A tumor affecting these structures would impair absorption.
Using the figure shown, indicate in which location would a client with an inflamed appendix likely have pain and tenderness?
- A. Right lower quadrant
- B. Left lower quadrant
- C. Right upper quadrant
- D. Left upper quadrant
Correct Answer: A
Rationale: The appendix is located in the right lower quadrant, where appendicitis pain is typically felt.
Out of four layers of alimentary canal, which one forms villi, (finger-like projection)?
- A. Serosa
- B. Mucosa
- C. Submucosa
- D. Muscularis
Correct Answer: B
Rationale: The mucosa layer forms villi, increasing the surface area for absorption in the small intestine.