Question 1

Select the incorrectly-matched osmoregulatory organ and the organism that uses it.

Accepted Answer

A)  nephridia-annelids
B)  protonephridia-flatworms
C)  Malpighian tubules-insects
D)  kidney-fish
E)  antennal glands-mollusksF) B) and E)
G) A) and C)

Question 2

Water and small solutes are filtered under pressure out of the blood plasma into nephrons through the porous walls of ________,tufts of capillaries in the renal cortex.

Accepted Answer

A)  vasa rectae
B)  Loops of Henle
C)  glomeruli
D)  collecting ducts
E)  juxtaglomerular apparatiF) A) and B)
G) A) and C)

Question 3

Which solute must be administered in high amounts because of its very efficient secretion and removal by the kidney tubules?

Accepted Answer

A)  penicillin
B)  HCO3- ions
C)  amino acids
D)  glucose
E)  vitamin KF) B) and E)
G) A) and B)

Question 4

What animal cannot make hypertonic urine?

Accepted Answer

A)  blue jay
B)  dog
C)  human
D)  grasshopper
E)  American toadF) A) and D)
G) A) and C)

Question 5

Kidneys are thought to have evolved first among the ________.

Accepted Answer

A)  amphibians
B)  freshwater bony fishes
C)  saltwater bony fishes
D)  reptiles
E)  mammalsF) None of the above
G) A) and E)

Question 6

Connor decides to celebrate his 21st birthday by drinking a few beers at a local sports bar.After a while,Connor notices that he is making many more trips to the men's room than the week before,when he drank similar amounts of carbonated water.Why is that?

Accepted Answer

A)  Alcohol stimulates filtration of the blood plasma by the glomeruli.
B)  Alcohol stimulates secretion of ions into the nephron and water follows by osmosis.
C)  Alcohol inhibits reabsorption of sugars,amino acids and other small metabolites,which decreases reabsorption of water.
D)  Alcohol inhibits the secretion of ADH by the posterior pituitary gland,thereby decreasing water reabsorption.
E)  Alcohol stimulates the insertion of aquaporins into the plasma membranes of cells that line the collecting ducts,thereby decreasing water reabsorption.F) B) and E)
G) B) and D)

Exam 49: Osmotic Regulation and the Urinary System

Kidneys are thought to have evolved first among the ________.

Correct Answer
verified

Which solute must be administered in high amounts because of its very efficient secretion and removal by the kidney tubules?

Correct Answer
verified

Select the incorrectly-matched osmoregulatory organ and the organism that uses it.

Correct Answer
verified

Connor decides to celebrate his 21st birthday by drinking a few beers at a local sports bar.After a while,Connor notices that he is making many more trips to the men's room than the week before,when he drank similar amounts of carbonated water.Why is that?

Correct Answer
verified

What animal cannot make hypertonic urine?

Correct Answer
verified

Water and small solutes are filtered under pressure out of the blood plasma into nephrons through the porous walls of ________,tufts of capillaries in the renal cortex.

Correct Answer
verified

Exam 49: Osmotic Regulation and the Urinary System

Kidneys are thought to have evolved first among the ________.

Correct AnswerverifiedShow Answer

Which solute must be administered in high amounts because of its very efficient secretion and removal by the kidney tubules?

Correct AnswerverifiedShow Answer

Select the incorrectly-matched osmoregulatory organ and the organism that uses it.

Correct AnswerverifiedShow Answer

Connor decides to celebrate his 21st birthday by drinking a few beers at a local sports bar.After a while,Connor notices that he is making many more trips to the men's room than the week before,when he drank similar amounts of carbonated water.Why is that?

Correct AnswerverifiedShow Answer

What animal cannot make hypertonic urine?

Correct AnswerverifiedShow Answer

Water and small solutes are filtered under pressure out of the blood plasma into nephrons through the porous walls of ________,tufts of capillaries in the renal cortex.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified