The nutrient that supplies bulk to help the movement of waste through the digestive system is
- A. protein
- B. vitamins
- C. minerals
- D. fibre
Correct Answer: D
Rationale: Fibre provides bulk and aids in the movement of waste through the digestive tract by promoting peristalsis.
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Which of the following cells secrete pepsinogen?
- A. Parietal cells
- B. Alpha cells
- C. Chief cells
- D. Stem cells
Correct Answer: C
Rationale: Chief cells in the stomach are responsible for secreting pepsinogen, which is then activated to pepsin by the acidic environment created by HCl.
All about vermilion zone (free red margin) of lip is true EXCEPT:
- A. Covered by modified mucous membrane
- B. The epith covering has clear keratin superficial layer.
- C. Show deep & numerous dermal papilla
- D. Show NO skin appendages.
Correct Answer: A
Rationale: The vermilion zone is covered by modified skin, not a mucous membrane, though it lacks skin appendages and has a thin keratin layer.
What are the substrate and end-products of digestion by the enzyme lipase?
- A. substrate: triglycerides, end-products: fatty acids and glycerol
- B. substrate: proteins, end-products: amino acids
- C. substrate: carbohydrates, end-products: monosaccharides
- D. substrate: nucleic acids, end-products: nucleotides
Correct Answer: A
Rationale: Lipase acts on triglycerides, breaking them down into fatty acids and glycerol.
Lipase breaks down molecules of fat into what?
- A. Fatty acids and sugars
- B. Fatty acids and glycerol
- C. Fatty acids and amino acids
- D. Fatty acids
Correct Answer: B
Rationale: Lipase hydrolyzes triglycerides into fatty acids and glycerol, which are then absorbed.
Based on knowledge of anatomy and physiology, are there any diet considerations that the student should include in the teaching plan?
- A. Low-fat, enzyme-supplemented diet
- B. High-fiber diet only
- C. Low-protein diet
- D. No dietary changes needed
Correct Answer: A
Rationale: Post-pancreatectomy, a low-fat diet with enzyme supplements is necessary due to impaired digestion.