Where are the osmoreceptors located?
- A. Kidney
- B. Hypothalamus
- C. Pituitary
- D. Liver
Correct Answer: B
Rationale: Osmoreceptors in the hypothalamus detect blood osmolarity changes.
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Into which tubes do the nephrons drain?
- A. Proximal convoluted tubule
- B. Collecting duct
- C. Distal convoluted
- D. Ureter
Correct Answer: B
Rationale: Nephrons drain into collecting ducts, which lead to the ureter.
Which of the following is not a major gastrointestinal hormone?
- A. epinephrine
- B. secretin
- C. gastrin
- D. cholecystokinin
Correct Answer: A
Rationale: Epinephrine is not a gastrointestinal hormone; it is primarily involved in the sympathetic nervous system.
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.
Lier cells synthesize ______________.
- A. Bile juice.
- B. Trypsin.
- C. Amylopsin.
- D. Lipase.
Correct Answer: A
Rationale: Liver cells (hepatocytes) are responsible for synthesizing bile juice, which aids in fat digestion.
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.