Nokea
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.
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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.
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.
Absorption of digested food chiefly occurs in-
- A. Stomach
- B. Colon
- C. Small Intestine
- D. Large Intestine
Correct Answer: C
Rationale: The small intestine is the primary site for nutrient absorption due to its large surface area.
In pancreas, pancreatic juice and hormone are secreted by-
- A. Islets of Langerhans
- B. Cells of Acini and Islets of Langerhans respectively
- C. Islets of Langerhans and cells of Acini respectively
- D. None of these.
Correct Answer: B
Rationale: Pancreatic juice is secreted by acinar cells, and hormones by Islets of Langerhans.
A lack of functioning salivary amylase would prevent an individual from being able to digest lactose
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: Salivary amylase digests starches, not lactose. Lactose digestion occurs in the small intestine via lactase.