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21. Inulin clearance closely resembles_____________?

A. G.F.R
B. Renal plasma flow
C. Creatinine clearance
D. P.A.H. clearance

22. Which one of the following is not responsible for concentration of urine in the kidneys______________?

A. Aldosterone
B. Angiotensin II
C. Vasopressin
D. Epinephrine

23. Two substances that can probably be used to determine filtration fraction are_______________?

A. Inulin and mannitol
B. Urea and diodrast
C. PAH and Phenol red
D. Inulin and PAH

24. In renal glycosuria, the renal threshold for glucose is_______________?

A. Low
B. High
C. Same
D. Greatly increased

25. Proximal renal tubule is most permeable to _______________?

A. Sodium
B. Potassium
C. Bicarbonate
D. Ammonia

26. Major portion of glomerular filtrate is absorbed in__________________?

A. Loop of Henle
B. Distal convoluted tubule
C. Collecting duct
D. Proximal segment

27. GFR is increased when________________?

A. Plasma oncotic pressure is increased
B. Glomerular hydrostatic pressure is decreased
C. Tubular hydrostatic pressure is increased
D. Increased renal blood flow

28. Each kidney contains about ______ nephrons ?

A. One million
B. Two million
C. Four million
D. ½ million

29. The normal adult value of urine output________________?

A. 1.5 l/day
B. 3 l/day
C. 0.5 l/day
D. 2 l/day

30. Amount of glucose absorbed in proximal convoluted tubule_______________?

A. 100%
B. 0%
C. 60%
D. 50%