Question 1

The kidneys are much more powerful than the acid-base buffer and the respiratory center mechanisms are in controlling blood pH.

Accepted Answer

A) True 
 B)False

Question 2

Why do some people not drink caffeinated beverages right before bedtime?

Accepted Answer

A)   It increases the flow of urine and causes you to go to the bathroom during the night.
B)   It decreases the flow of urine and can cause kidney stones.
C)   It may affect the ability to sleep but caffeine has very little effect on the urinary system.D) A) and B)
E) A) and C)

Question 3

How are excretion and defecation alike?

Accepted Answer

A)   Both are carried out by the urinary system.
B)   Both eliminate waste from the body.
C)   Both are carried out by the digestive system.
D)   Both involve the kidneys.
E)   Both involve the colon.F) B) and C)
G) C) and D)

Question 4

An enlarged prostate gland can lead to kidney stones in males.

Accepted Answer

A) True 
 B)False

Question 5

What effect does cellular respiration have on the pH of the blood?

Accepted Answer

A)   It does not affect the pH.
B)   It raises the pH.
C)   It lowers the pH.D) B) and C)
E) A) and C)

Question 6

Why does glucose appear in the urine of a diabetic?

Accepted Answer

A)   The volume of urine is too great to filter.
B)   No glucose is filtered into the glomerular filtrate.
C)   The kidneys produce glucose in diabetes.
D)   The carriers for glucose reabsorption reach their maximum rate of transport.
E)   The ascending limb of the loop of Henle secretes glucose into the urine.F) A) and B)
G) A) and C)

Question 7

What is located within the glomerular capsule?

Accepted Answer

A)   the renal cortex
B)   the loop of Henle
C)   several collecting ducts
D)   a knot of capillaries
E)   the peritubular capillary networkF) All of the above
G) C) and E)

Question 8

Substances that are nonfilterable in the glomerulus exit the nephron through the afferent arteriole.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following organs of the urinary system is not present in duplicate?

Accepted Answer

A)   bladder
B)   kidney
C)   ureterD) None of the above
E) All of the above

Question 10

Tubular reabsorption requires both passive and active modes of reabsorption.

Accepted Answer

A) True 
 B)False

Question 11

The urethra is controlled by two sphincters,one composed of smooth muscle and one composed of skeletal muscle.

Accepted Answer

A) True 
 B)False

Question 12

Why do water and small molecules move from the glomerulus into the filtrate?

Accepted Answer

A)   diffusion down the concentration gradient
B)   glomerular blood pressure
C)   active transport
D)   secretionE) None of the above
F) A) and C)

Question 13

The kidneys convert vitamin D and thereby assist calcium homeostasis.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not a region of the kidney?

Accepted Answer

A)   hypothalamus
B)   cortex
C)   medulla
D)   pelvisE) A) and B)
F) B) and C)

Question 15

ANH is a hormone produced by the hypothalamus and secreted by the posterior pituitary.

Accepted Answer

A) True 
 B)False

Question 16

The urethra in females is much longer than in males.

Accepted Answer

A) True 
 B)False

Question 17

The kidneys help to maintain blood pressure by monitoring the pH of the blood.

Accepted Answer

A) True 
 B)False

Question 18

Why is the dialysate continually replaced in hemodialysis?

Accepted Answer

A)   to maintain a favorable concentration gradient with the blood
B)   because it is easily infected
C)   because it enters the body and is absorbed
D)   because it is lost by urinationE) A) and B)
F) All of the above

Question 19

Which molecule is reabsorbed less than 50% during tubular reabsorption?

Accepted Answer

A)   urea
B)   water
C)   sodium
D)   glucose
E)   amino acidsF) A) and E)
G) B) and D)

Question 20

Which of the following is not part of a nephron?

Accepted Answer

A)   glomerular capsule
B)   proximal convoluted tubule
C)   loop of Henle
D)   collecting duct
E)   ureterF) C) and E)
G) C) and D)

Exam 10: Urinary System and Excretion

The kidneys are much more powerful than the acid-base buffer and the respiratory center mechanisms are in controlling blood pH.

Correct AnswerverifiedShow Answer

What is located within the glomerular capsule?

Correct AnswerverifiedShow Answer

An enlarged prostate gland can lead to kidney stones in males.

Correct AnswerverifiedShow Answer

Tubular reabsorption requires both passive and active modes of reabsorption.

Correct AnswerverifiedShow Answer

Which molecule is reabsorbed less than 50% during tubular reabsorption?

Correct AnswerverifiedShow Answer

The kidneys help to maintain blood pressure by monitoring the pH of the blood.

Correct AnswerverifiedShow Answer

Why does glucose appear in the urine of a diabetic?

Correct AnswerverifiedShow Answer

How are excretion and defecation alike?

Correct AnswerverifiedShow Answer

Why do some people not drink caffeinated beverages right before bedtime?

Correct AnswerverifiedShow Answer

Why do water and small molecules move from the glomerulus into the filtrate?

Correct AnswerverifiedShow Answer

The urethra in females is much longer than in males.

Correct AnswerverifiedShow Answer

Which of the following is not a region of the kidney?

Correct AnswerverifiedShow Answer

Which of the following organs of the urinary system is not present in duplicate?

Correct AnswerverifiedShow Answer

The kidneys convert vitamin D and thereby assist calcium homeostasis.

Correct AnswerverifiedShow Answer

What effect does cellular respiration have on the pH of the blood?

Correct AnswerverifiedShow Answer

The urethra is controlled by two sphincters,one composed of smooth muscle and one composed of skeletal muscle.

Correct AnswerverifiedShow Answer

Why is the dialysate continually replaced in hemodialysis?

Correct AnswerverifiedShow Answer

Which of the following is not part of a nephron?

Correct AnswerverifiedShow Answer

ANH is a hormone produced by the hypothalamus and secreted by the posterior pituitary.

Correct AnswerverifiedShow Answer

Substances that are nonfilterable in the glomerulus exit the nephron through the afferent arteriole.

Correct AnswerverifiedShow Answer

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