Biology: The Kidney And Osmoregulatory Organs Trivia Quiz!
(35).jpg "Biology: The Kidney And Osmoregulatory Organs Trivia Quiz!")
Do you know anything about kidneys and the osmoregulatory organs? Kidneys are the foremost osmoregulatory organ. The skin and lungs also play a part in the process. Water and electrolytes are lost through sweat glands in the skin, which moisturize and cool the skin surface. If you are interested in learning about these organs, you should try this quiz.
- 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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