Nokea
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.
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A patient presents with persistent bloating, gas, and diarrhea after consuming dairy products. Which of the following is the most likely cause of these symptoms?
- A. Impaired carbohydrate digestion
- B. Impaired protein digestion
- C. Impaired fat digestion
- D. Impaired lactose digestion
Correct Answer: D
Rationale: Lactose intolerance, due to lactase deficiency, leads to impaired lactose digestion, causing bloating, gas, and diarrhea after dairy consumption.
Which type of digestion breaks down pieces of food into small molecules?
- A. chemical digestion
- B. peristalsis digestion
- C. mechanical digestion
- D. absorption digestion
Correct Answer: A
Rationale: Chemical digestion uses enzymes to break food into small molecules.
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.
When teaching a group of senior citizens about nutrition, the nurse should include information about which of the following age-related changes in gastrointestinal functioning?
- A. Sensory changes that affect taste
- B. Problems with dentition
- C. Reduced gastric juice secretion
- D. Enhanced GI muscle tone
Correct Answer: C
Rationale: Reduced gastric juice secretion is a common age-related change affecting digestion.
What role does the stomach play in the maintenance of normal vitamin B12 levels?
- A. Produces intrinsic factor
- B. Absorbs vitamin B12
- C. Stores vitamin B12
- D. Converts vitamin B12
Correct Answer: A
Rationale: The stomach's parietal cells produce intrinsic factor, necessary for vitamin B12 absorption in the ileum.