Biology: The Kidney And Osmoregulatory Organs Trivia Quiz!
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(35).jpg "Biology: The Kidney And Osmoregulatory Organs Trivia Quiz!")
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- 1.The functional unit of the kidney is the:
- A.
Nephron
- B.
Glomerulus
- C.
Medulla
- 2.The specialized nephron capillary bed where filtration occurs is the
- A.
Afferent arteriole
- B.
Glomerulus
- C.
Efferent arteriole
- 3.Which of the following is not a function of the kidneys
- A.
Excreting metabolic wastes
- B.
Secreting aldosterone to regulate sodium
- C.
Maintaining proper osmolarity of body fluids
- 4.Vasa recta are associated with
- A.
Renal papillae
- B.
Cortical nephrons
- C.
Juxtamedullary nephron
- 5.The renal process whereby substances are selectively transferred from the peritubular blood into the renal tubule is:
- A.
Filtration
- B.
Excretion
- C.
Secretion
- 6.Filtrate passes through all of these except
- A.
Filtration site
- B.
Podocytes
- C.
Basement membrane
- 7.Which of the following is not part of nephrone
- A.
Collecting duct
- B.
Bowman's capsule
- C.
Ureter
- 8.Indicate the correct flow of filtrate through these structure:
- A.
4,6,5,3,2,1.
- B.
2,6,1,4,5,3.
- C.
2,1,4,3,5,6
- 9.The glomerular filtration rate
- A.
Averages 125 ml/min
- B.
Averages 75 liters/day
- C.
Both (a) and (b)
- 10.The glomerular capillary blood pressure in the nephron is 78 mm Hg . the bowman's capsular hydrostatic pressure is 24 mm Hg. the colloidal osmotic pressure is 18 mm Hg. the net filtration pressure is------ mm Hg.
- A.
42
- B.
18
- C.
36
- 11.Into which structure does most reabsorption occur?
- A.
Proximal convoluted tubule
- B.
Loop of Henle
- C.
Glomerulus
- 12.The proximal tubule
- A.
Is the site of action of renin
- B.
Reabsorbs about 65% of the filtration water
- C.
Is not the location where glucose is reabsorbed
- 13.Tubular reabsorption involves
- A.
Active transport
- B.
Countertransport
- C.
Cotransport
- D.
All of these
- 14.Into which structure does most reabsorptin occur?
- A.
Loop of henle
- B.
Distal convoluted tubule
- C.
Proximal convoluted tubule
- 15.Which of the following plasma constituent is not regulated by the kidneys?
- A.
Glucose
- B.
Na+
- C.
Water
- D.
H+
- 16.Reabsorption of chloride is
- A.
Active
- B.
Passive
- C.
Passive and dependent on the amount of sodium reabsorbed
- 17.Select the major waste product of nitrogen metabolism
- A.
PO4
- B.
Amino acids
- C.
Urea
- 18.The maximum normal glucose concentration in the plasma is about ------- mg per 100 ml
- A.
30
- B.
60
- C.
100
- 19.Aldosterone secretion
- A.
Occur in the kidney
- B.
Is stimulated by angiotensin II
- C.
All of these
- 20.The greatest percentage of Na+ reabsorptin takes place in the :
- A.
Proximal tubule
- B.
Collecting tubule
- C.
Distal tubule
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