Select all of the TRUE statements about the proximal convoluted tubule. (1 pt) S

Question

Select all of the TRUE statements about the proximal convoluted tubule. (1 pt)

Select one:

a. It transports the blood into the peritubular capillary by tubular reabsorption.

b. It is the only site of glucose reabsorption in the nephron and it reabsorbs 100% of glucose unless the person has diabetes mellitus.

c. It is impermeable to water unless anti-diuretic hormone is present.

d. It reabsorbs majority of the filtrate which will end up into the glomerular capillary.

e. It receives the blood directly from the Bowman's capsule.

f. None of the above

Explanation / Answer

A. Blood is reabsorbed into peritubular capillary from PCT.

B. Glucose is reabsorbed completely into blood by Na-Glucose co-transport and diabetes melitus is a condition in which glucose can't be absorbed.

C. Antidiuretic hormone is arginine vasopressin which is secreated by hypothalamus and balances the water in blood so causes reabsorption when present.

D. PCT is major site of reabsorption and is continuous with Bowman capsule and filterate emters from Glomerus into PCT where Na, Carbonate, Glucose, Water are reabsorbed.

E. PCT is continuous with Bowman capsule and ends into loop of henle.

Hence Statement A, B, C, D, E are true.

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