Sample Questions — Role of other organs in excretion
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MCQ
Which of the following contributes to both thermoregulation and excretion?
✅ Correct Answer: D
Sweat helps cool the body and remove waste like urea.
MCQ
Why is the liver considered an excretory organ?
✅ Correct Answer: C
The liver removes bilirubin, biliverdin, steroid hormones, vitamins, and drugs through bile.
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MCQ
Which organ helps eliminate cholesterol from the body?
✅ Correct Answer: B
Liver excretes cholesterol via bile.
MCQ
Why is sweat considered a route of excretion?
✅ Correct Answer: A
Sweat contains NaCl, urea, and lactic acid.
MCQ
Which glands eliminate sterols, hydrocarbons, and waxes through sebum?
✅ Correct Answer: D
Sebaceous glands are excretory for lipids like sterols.
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