Formation of a small volume of concentrated urine in dehydration is associated with____________?
(A) More reabsorption in the PCT
(B) More concentration in loop of Henle
(C) More reabsorption of DCT and collecting ducts
(D) All of these
Amount of glucose absorbed in proximal convoluted tubule_______________?
(A) 100%
(B) 0%
(C) 60%
(D) 50%
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
Each kidney contains about ______ nephrons ?
(A) One million
(B) Two million
(C) Four million
(D) ½ million
Renin secretion is stimulated by all except_____________?
(A) Cardiac failure
(B) Low Na+ in proximal tubule
(C) Sympathetic stimulation
(D) High Na+ in proximal tubule
The hyperosmolarity of the renal medulla is due to increased content of_____________?
(A) K+
(B) Na+
(C) Glucose
(D) NH4+
True about nephron is_____________?
(A) Na is absorbed actively in descending loop of Henle
(B) 60 to 70% of GFR is absorbed in proximal tubule
(C) Absorption of water occurs in ascending loop of Henle
(D) The filtrate reaching distal convoluted tubule is hypertonic with respect to surroundings
The renal clearance of _______________?
(A) Creatinine indicates glomerular filtration rate
(B) Inulin is lower than that of urea
(C) Chloride increases after in injection of aldosterone
(D) PAH continues to rise as the plasma concentration of PAH increases
Which of the following is important in renal excretion of hydrogen ion ?
(A) Combining H+ with Cl- to form Hcl
(B) Combining H+ and HCO3- via enzyme carbonic anhydrase
(C) Trapping H+ by acetate
(D) Trapping H+ by NH3+
Macula dense in kidney is located in relation to______________?
(A) PCT
(B) DCT
(C) Afferent arteriole
(D) Efferent arteriole