17 ASSIGNMENT EXAM WITH VERIFIED
AND VALIDATED ANSWERS.
The interstitial fluid of the medulla must be hypertonic to the tubular fluid
in order for water to be reabsorbed by osmosis into the peritubular
capillaries. - CORRECT ANSWER -true
The reabsorption of Na+ in the proximal tubule creates an osmotic gradient
for the diffusion of ________ to occur. - CORRECT ANSWER -h20
The ________ limb of the nephron loop is impermeable to water. -
CORRECT ANSWER -ascending
The ________ limb of the nephron loop is impermeable to salt. - CORRECT
ANSWER -descending
The concentration of renal filtrate is highest in the ________. - CORRECT
ANSWER -base of the nephron loop
Urea transport in the collecting duct is a(n) ________ process. - CORRECT
ANSWER -passive
Antidiuretic hormone ________. - CORRECT ANSWER -stimulates water
reabsorption by the kidney
induces fusion of aquaporin containing vesicles with the plasma membrane
, is secreted in response to dehydration
so All of the choices are correct.
Inulin is a good measure of GFR because it is filtered but neither
reabsorbed nor secreted by the kidneys. - CORRECT ANSWER -true
Due to the action of aldosterone, water is reabsorbed because ________. -
CORRECT ANSWER -sodium is reabsorbed into peritubular blood
Granular cells of the juxtaglomerular apparatus respond to decreased blood
volume and increased sympathetic nerve activity by secreting ________. -
CORRECT ANSWER -renin
The presence of renin secreting tumors may cause ________. - CORRECT
ANSWER -hypertension, increased aldosterone secretion, increased renal
sodium reabsorption ... so all the choices are correct
Hemorrhage would induce ________. - CORRECT ANSWER -increased renin
secretion
Check all that occur when there is an increase in aldosterone secretion in
response to an increase in renin by the juxtaglomerular apparatus. -
CORRECT ANSWER -potassium secretion increases and sodium reabsorption
increases
The kidneys help regulate blood pH by excreting __________ in the urine
and by reabsorbing __________. - CORRECT ANSWER -h + and bicarbonate