Biomed 100 Practice Quiz
Chapter 16, Fall 2006
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Multiple Choice - One Correct Choice Per Question
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  1. One renal corpuscle consists of...
    1. one renal artery and one renal vein
    2. one nephron and one renal pyramid
    3. one glomerulus and one glomerular capsule
      4.
    4. two ureters
    5. one ureter and one urethra

  2. Given the following key:
    1 = glomerulus
    2 = afferent arteriole
    3 = efferent arteriole
    Which one of the following is in the correct sequence according to the flow of blood?
    1. 1-2-3
    2. 1-3-2
    3. 2-1-3
      4.
    4. 2-3-1
    5. 3-1-2

  3. The pressure in glomerular capillaries is _?_ the pressure in most other capillaries.
    1. greater than
      2.
    2. less than
    3. equal to

  4. The main function of the renal corpuscle is...
    1. production of urea
    2. metabolism of ammonia
    3. filtration of blood
      4.
    4. storage of urine

  5. The filtrate produced by the renal corpuscles is very similar to blood plasma except that the filtrate normally contains little or no...
    1. water
    2. glucose (blood sugar)
    3. protein
      4.
    4. electrolytes (sodium, chloride, etc.)
    5. ammonia or urea

  6. How much fluid normally filters through the glomerular capillaries in a 24-hour period?
    1. approximately 100 ml.
    2. one to two liters
    3. approximately 150 to 180 liters (40 to 45 gallons)
      4.

  7. Most (99%) of the filtrate produced per 24 hours is...
    1. excreted as urine
    2. reabsorbed into the blood
      3.

  8. It would be considered normal for urine to contain all of the following except...
    1. urea
    2. sodium
    3. potassium
    4. glucose
      5.

  9. Which one of the following most accurately describes the process of reabsorption in the renal tubules?
    1. sodium and water are both "pumped" into the renal tubule
    2. sodium and water are both "pumped" out of the renal tubule
    3. water is "pumped" into the renal tubule; sodium follows water by osmosis
    4. water is "pumped" out of the renal tubule; sodium follows water by osmosis
    5. sodium is "pumped" out of the renal tubule; water follows sodium by osmosis
      6.

  10. True or false? Once filtration has occurred, the nephron is unable to move any molecule or electrolyte out of the blood and into the urine being formed.
    1. True.
    2. False.
      3.

  11. Under what conditions would a person produce approximately one milliliter (1 ml.) of urine per minute, or approximately 60 ml. per hour?
    1. normal conditions
      2.
    2. severe dehydration
    3. severe overhydration
    4. acute renal failure
    5. pituitary dysfunction (pituitary is failing to produce antidiuretic hormone)

  12. Ammonia production is most directly correlated with...
    1. DNA synthesis
    2. carbohydrate catabolism (breakdown)
    3. triglyceride catabolism (breakdown)
    4. protein anabolism (buildup)
    5. protein catabolism (breakdown)
      6.

  13. Which one of the following is false?
    1. Ammonia is very toxic.
    2. The liver converts ammonia to urea.
    3. The liver converts urea to ammonia.
      4.
    4. The kidneys filter the blood and excrete ammonia.
    5. The kidneys filter the blood and excrete urea.