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Solution


Q.

Find the correct option regarding mechanism of urine formation in man.
 a) The glomerular filtration rate is about 125 mL/min
 b) The ultra filtration is opposed by the colloidal osmotic pressure of plasma
 c) Tubular secretion takes place in the PCT
 d) Aldosterone induces greater reabsorption of sodium
1 A
2 B
3 C
4 D

Ans.

(c) Tubular secretion takes place in DCT and collecting tubules. It is the active secretion or excretion of waste products from blood capillaries and interstitial fluid into the lumen of nephron.