Nokea
Regarding starvation:
- A. glycogen provides enough fuel for 48 hours
- B. ketoacids derived from fats, are used by the brain and other tissues
- C. hypoglycaemia has a protein sparing effect
- D. average time until death is 40 days
Correct Answer: B
Rationale: Step-by-step rationale for the correct answer (B):
1. During starvation, the body shifts to using ketoacids derived from fats for fuel.
2. The brain and other tissues can utilize these ketoacids.
3. This process helps to spare protein and prevent muscle breakdown.
4. Therefore, choice B is correct as ketoacids play a crucial role in providing energy during starvation.
Summary of why other choices are incorrect:
A: Glycogen stores are depleted within 24 hours, not 48 hours.
C: Hypoglycemia during starvation does not have a protein sparing effect.
D: The average time until death from starvation is typically much shorter than 40 days.
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Correct Answer: A
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- A. External laryngeal nerve
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- C. Internal laryngeal nerve
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Correct Answer: A
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Which stimulates parietal cell secretion?
- A. prostaglandins
- B. aspirin
- C. vinegar
- D. acetylcholine
Correct Answer: D
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- A. Beta-adrenergic agonists
- B. Alpha-adrenergic antagonists
- C. Alpha-adrenergic agonists
- D. Beta-adrenergic antagonists
Correct Answer: D
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