BIOL 1002 EXAM #4 (POMARICO LSU)
QUESTIONS AND ANSWERS 2026
VERIFIED.
B. - ANS Which organ converts ammonia to urea?
a. Pancreas
b. Liver
c. Gallbladder
d. Kidney
D. - ANS Flame cells are the specialized excretory structures found in _____.
a. Insects
b. Protozoa
c. Earthworms
d. Flatworms
B. - ANS In the human urinary system, the kidneys _____ the urine.
a. Store
b. Produce
c. Transport
d. Excrete
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,A. - ANS Tubular reabsorption is _____.
a.The process by which cells of the proximal tubule remove water and nutrients and pass them
back into the blood
b.The passage of blood cells and proteins from the glomerulus
c.The process by which wastes and excess substances that were not initially filtered out into
Bowman's capsule are removed from the blood
d.The concentration of the filtrate due to the concentration of salts and urea
A. - ANS The hormone ADH _____.
a. Controls the concentration of the urine
b. Controls the reabsorption of nutrients
c. Controls the amount of blood that enters the kidneys
d. Determines the pH of the blood
A. - ANS What happens to a substance that is not filtered, nor reabsorbed, but secreted?
a. The body retains it
b. It is excreted from the body
c. Its concentration in the blood gradually decreases
d. Its concentration in the blood gradually increases
e. Both the second and third answers are correct
f. Both the first and fourth answers are correct
B. - ANS Where is blood filtered?
a. Between the proximal tubule and the distal tubule
b. Between Bowman's capsule and the glomerulus
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, c. Between the collecting duct and Bowman's capsule
d. Between the descending limb of the loop of Henle and the ascending limb of the loop of
Henle
D. - ANS Under which of the following conditions would you expect the production and
secretion of the hormone, ADH, to increase?
a. You are trapped, unharmed, under the rubble that used to be your house after a large storm
b. A plumber came out early in the morning and shut off the water supply to your new house so
that a new water main could be put in. All that you've been doing is sitting around the house in
the shade waiting for the water to come back on. The water to the house isn't turned on until 7
pm that evening.
c. You've just suffered your first loss of a softball tournament, and now your team will need to
play six games in one day with only two 1-hour breaks to reach the championship game
d. All of the above
e. None of the above
Nephridia - ANS _________ are kidney-like structures found in many invertebrates
Bladder - ANS The _________ is a hollow muscular chamber that collects and stores urine
Filtration - ANS The process of _________ results in many substances being forced through
capillaries in the glomerulus
Tubular Reabsorption - ANS In _________, substances in the filtrate are brought back into the
blood circulation
Tubular Secretion - ANS In _________, substances in the blood are actively transported
directly into the filtrate
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QUESTIONS AND ANSWERS 2026
VERIFIED.
B. - ANS Which organ converts ammonia to urea?
a. Pancreas
b. Liver
c. Gallbladder
d. Kidney
D. - ANS Flame cells are the specialized excretory structures found in _____.
a. Insects
b. Protozoa
c. Earthworms
d. Flatworms
B. - ANS In the human urinary system, the kidneys _____ the urine.
a. Store
b. Produce
c. Transport
d. Excrete
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 25
,A. - ANS Tubular reabsorption is _____.
a.The process by which cells of the proximal tubule remove water and nutrients and pass them
back into the blood
b.The passage of blood cells and proteins from the glomerulus
c.The process by which wastes and excess substances that were not initially filtered out into
Bowman's capsule are removed from the blood
d.The concentration of the filtrate due to the concentration of salts and urea
A. - ANS The hormone ADH _____.
a. Controls the concentration of the urine
b. Controls the reabsorption of nutrients
c. Controls the amount of blood that enters the kidneys
d. Determines the pH of the blood
A. - ANS What happens to a substance that is not filtered, nor reabsorbed, but secreted?
a. The body retains it
b. It is excreted from the body
c. Its concentration in the blood gradually decreases
d. Its concentration in the blood gradually increases
e. Both the second and third answers are correct
f. Both the first and fourth answers are correct
B. - ANS Where is blood filtered?
a. Between the proximal tubule and the distal tubule
b. Between Bowman's capsule and the glomerulus
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 25
, c. Between the collecting duct and Bowman's capsule
d. Between the descending limb of the loop of Henle and the ascending limb of the loop of
Henle
D. - ANS Under which of the following conditions would you expect the production and
secretion of the hormone, ADH, to increase?
a. You are trapped, unharmed, under the rubble that used to be your house after a large storm
b. A plumber came out early in the morning and shut off the water supply to your new house so
that a new water main could be put in. All that you've been doing is sitting around the house in
the shade waiting for the water to come back on. The water to the house isn't turned on until 7
pm that evening.
c. You've just suffered your first loss of a softball tournament, and now your team will need to
play six games in one day with only two 1-hour breaks to reach the championship game
d. All of the above
e. None of the above
Nephridia - ANS _________ are kidney-like structures found in many invertebrates
Bladder - ANS The _________ is a hollow muscular chamber that collects and stores urine
Filtration - ANS The process of _________ results in many substances being forced through
capillaries in the glomerulus
Tubular Reabsorption - ANS In _________, substances in the filtrate are brought back into the
blood circulation
Tubular Secretion - ANS In _________, substances in the blood are actively transported
directly into the filtrate
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