BMS100 Past Test Questions
Chapter 12, Spring 2009
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  1. Hemoglobin molecules
    1. are normally located inside erythrocytes
    2. contain iron
    3. contain protein
    4. all of the above

  2. How many oxygen molecules are normally attached to one hemoglobin molecule in a pulmonary vein?
    1. zero (0)
    2. one (1)
    3. three (3)
    4. four (4)
    5. approximately 280 million

  3. Erythrocytes (red blood cells) are produced in _?_, and erythrocyte production may be stimulated by _?_.
    1. the liver / low blood iron levels
    2. bone marrow / low blood iron levels
    3. the liver / low blood oxygen levels
    4. bone marrow / low blood oxygen levels

  4. Which one of the following is false?
    1. Old erythrocytes are destroyed in the liver and the spleen.
    2. Normally, rate of erythrocyte destruction is approximately equal to rate of erythrocyte production.
    3. Hemoglobin molecules are completely recycled following destruction of old erythrocytes.

  5. Which formed elements of blood can be produced outside of bone marrow?
    1. thrombocytes (platelets)
    2. granular leukocytes (neutrophils, eosinophils, basophils)
    3. lymphocytes
    4. none of the above

  6. Blood contains _?_ type(s) of granular leukocytes (white blood cells) and _?_ type(s) of agranular leukocytes.
    1. one / one
    2. two / one
    3. two / three
    4. three / two
    5. five / five

  7. Most, but not all, leukocytes are involved in
    1. phagocytosis
    2. producing antibodies
    3. creating holes in the membranes of target cells
    4. releasing histamine and other mediators of inflammation

  8. The first step in formation of a platelet plug is platelet adhesion to
    1. fibrinogen in blood plasma
    2. endothelium in the wall of a vessel
    3. collagen in the wall of a vessel
    4. bacteria in connective tissue

  9. What is the name of the process in which a soluble protein, which is always present in plasma, is converted to insoluble threads that form a sticky "net?"
    1. coagulation
    2. phagocytosis
    3. agglutination
    4. platelet aggregation