c. is where reabsorption of sodium occurs. d. both (a) and (b) above. e. all of
ID: 176832 • Letter: C
Question
c. is where reabsorption of sodium occurs. d. both (a) and (b) above. e. all of these answers 30. Na+ reabsorption a. uses 80% of the energy requirement of the kidney b. is under control of the hormone aldosterone in the distal portions of the nephron. c. is linked to the reabsorption of water, Cl-, glucose, amino acids, and urea d. both (a) and (b) above. e. all of these answers. 31. Which of the following is not attributable to atrial natriuretic peptide (ANP)? a. ANP is released from the cardiac atria when the ECF volume is reduced. b. ANP inhibits Na+ reabsorption in the distal parts of the nephron. c. ANP inhibits renin secretion by the kidneys. d. ANP inhibits aldosterone secretion by the adrenal cortex. e. ANP inhibits sympathetic nervous activity to the heart and blood vessels. 32. Water reabsorption is under the control of vasopressin (ADH) a. along the entire length of the nephron b. only in the loop of Henle c. only in the distal and collecting tubules. d. only in the proximal tubule. e. only in the glomerulus. 33. rea a. is the waste product with the smallest molecular size in the glomerular filtrate. s in greater concentration at the end of the proximal tubule than in other body fluids c. secretion under control of ADH adds to the interstium osmolarity d. both (a) and (b) above are correct. e. all of these answers. 34. When the extracellular fluid becomes too acidic, the tubular secretion of a. no ionic substance is affected. b. hydrogen ions decreases. C. hydrogen ions increases. d. sodium ions decreases e. sodium ions increases.Explanation / Answer
30.e) all of these answers.
31.a) ANP is released from the cardiac atria when the ECF volume is reduced.
32. c) only in the distal convoluted tubule & collecting tubules.
33. e) all of these answers.
34. c) hydrogen ions increases.
36. a) time required to filter blood in glomerulus.
37. e) None of these answers
38.b) is equal to GFR
39. b) isotonic, isotonic, hypotoni, hypotonic
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