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Biology 2015

Sylvia S. Mader, Michael Windelspecht

Chapter 36

Body Fluid Regulation and Excretory Systems

Educators


Problem 1

Which of these is not correct?
a. Uric acid is produced from the breakdown of nucleic acids.
b. Urea is produced from the breakdown of proteins.
c. Ammonia results from the deamination of amino acids.
d. All of these are correct.

Rikhil M.
Numerade Educator

Problem 2

One advantage of the excretion of urea instead of uric acid is that urea
a. requires less energy than uric acid to produce.
b. can be concentrated to a greater extent.
c. is not a toxic substance.
d. requires no water to excrete.
e. is a larger molecule.

Rikhil M.
Numerade Educator

Problem 3

Which of these pairs is mismatched?
a. insects—excrete uric acid
b. humans—excrete urea
c. fishes—excrete ammonia
d. birds—excrete ammonia
e. All of these are mismatched

Rikhil M.
Numerade Educator

Problem 4

Freshwater bony fishes maintain water balance by
a. excreting salt across their gills.
b. periodically drinking small amounts of water.
c. excreting a hypotonic urine.
d. excreting wastes in the form of uric acid.
e. Both a and c are correct.

Rikhil M.
Numerade Educator

Problem 5

Which of these is not an adaptation that helps kangaroo rats conserve water?
a. formation of a very hypertonic urine
b. highly convoluted nasal passages
c. production of very dry feces
d. relatively long loops of the nephron in kidneys
e. secretion of excess salt from glands near eyes

Rikhil M.
Numerade Educator

Problem 6

In the path of blood through the human kidney, the blood vessel that follows the renal artery is the
a. peritubular capillary.
b. efferent arteriole.
c. afferent arteriole.
d. renal vein.

Rikhil M.
Numerade Educator

Problem 7

Which of these materials is not filtered from the blood at the glomerulus?
a. water
b. urea
c. protein
d. glucose

Rikhil M.
Numerade Educator

Problem 8

Excretion of a hypertonic urine in humans is associated best with
a. the glomerular capsule.
b. the proximal convoluted tubule.
c. the loop of the nephron.
d. the collecting duct.
e. Both c and d are correct.

Rikhil M.
Numerade Educator

Problem 9

Which of these causes blood pressure to decrease?
a. aldosterone
b. antidiuretic hormone (ADH)
c. renin
d. atrial natriuretic hormone (ANH)

Rikhil M.
Numerade Educator

Problem 10

Label this diagram of a nephron

Rikhil M.
Numerade Educator