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Fundamental Organisation Human Physiology Excertion - Questions and Answers

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16. On reaching the collecting tubule, urine becomes hypertonic by the
A. Reabsorbtion of sodium ions
B. Reabsorbtion of urea
C. Excretion of urea
D. Reabsorbtion of water
Explanation:
17. The nephron of man measures a length of
A. 30 - 60 mm
B. 20 - 40 mm
C. 40 - 50 mm
D. 50 - 60 mm
Explanation:
18. What is the diameter of Malpighian capsule
A. 0.02 mm
B. 0.2 mm
C. 1.2 mm
D. 2.2 mm
Explanation:
19. How much of water is excreted daily in man
A. 1.0 l
B. 1.5 l
C. 2.0 l
D. 2.5 l
Explanation:
20. Urea is mainly in the
A. Kidney
B. Liver
C. Intestine
D. Blood
Explanation:
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