There can be more than one correct answer!
12. Renin
A. increases Na+ reabsorption
B. is released by JG cells when macula densa cells detectslower
flow of NaCL thorough the distal convoluted tubule
C. is released by JG cells when the pressure in the afferent
arteriole increases
D. stimulates the release of aldosterone from the adrenalcortex
17. Reabsorption of H2O in the medullary collecting ducts isby
A. active transport B. simple diffusion C. facilitated diffusionD. endocytosis
32. Emulsification of fat globules involves both mechanical
disruption of globules into fat droplets and then the preventionof those
droplets from reforming into globules with the assistance of
A. bile salts
B. micelles
C. phospholipids
D. chylomicrons
21. Why does the renal clearance of creatinine slightly
overestimate the GFR?
A. no creatinine is reabsorbed
B. a small amount of creatinine is reabsorbed
C. no creatinine is secreted
D. a small amount of creatinine is secreted
E. more creatinine is filtered than other substances
