Biomed 100 Practice Quiz
Chapter 17, Spring 2008
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  1. If the amount of protein consumed is greater than the amount needed by the body. then the production of _?_ is likely to increase.
    1. fat
    2. glucose
    3. urea
    4. both A. and B.
    5. both A. and C.
      6.

  2. When first stripped away from amino acids, the "amino" parts of amino acids become
    1. glucose
    2. ammonia
      3.
    3. urea
    4. fatty acids

  3. Which statement is true?
    1. Each kidney receives blood from a renal artery.
    2. Each nephron receives blood from an afferent arteriole.
    3. Both of the above are true.
      4.
    4. None of the above are true.

  4. What is located within, or "inside of," each renal corpuscle?
    1. One renal artery plus one renal vein.
    2. One entire nephron.
    3. One renal tubule coiled up into a "little ball."
    4. One blood capillary rolled up into a "little ball" (one glomerulus).
      5.
    5. One ureter coiled up into a "little ball."

  5. Which statement best describes a glomerulus?
    1. Each glomerulus contains blood under higher-than-average pressure, which supports the filtration process in the kidneys.
      2.
    2. Each glomerulus contains blood under lower-than-average pressure, which protects the kidneys from damage due to ruptures.
    3. Each glomerulus contains urine under higher-than-average pressure, which forces urine to flow out of the body.
    4. Each glomerulus contains urine under lower-than-average pressure, which maintains the pressure relationships needed for urine to flow.

  6. Where in the body does the greatest amount of blood filtration occur?
    1. pancreatic islets
    2. alveoli of bronchial trees
    3. glomeruli of renal corpuscles
      4.
    4. adrenal cortex (outer part of adrenal gland)
    5. adrenal medulla (inner part of adrenal gland)

  7. During filtration in the nephrons, _?_ does not normally pass through the filtration membrane ("filter").
    1. water
    2. protein
      3.
    3. sodium and chloride
    4. ammonia and urea

  8. True or false? The total volume of fluid filtered by the kidneys per day is usually within 1% of the urine produced during the same time period.
    1. True.
    2. False.
      3.

  9. During normal kidney function, _?_ is reabsorbed into the blood to the least extent.
    1. water
    2. sodium
    3. glucose
    4. urea
      5.

  10. What is the best description of tubular reabsorption?
    1. Molecules and ions are moved out of the renal arteries and into the renal veins.
    2. Molecules and ions are moved out of the renal veins and into the renal arteries.
    3. Molecules and ions are moved out of the renal tubules and into the blood capillaries.
      4.
    4. Molecules and ions are moved out of the blood capillaries and into the renal tubules.

  11. In the kidneys, water reabsorption is most directly dependent on the reabsorption of
    1. sodium
      2.
    2. potassium
    3. large protein molecules
    4. amino groups from amino acids