1. Which of the following functions is d. Do not have a nucleus.
performed by blood?
a. Clot formation e. All of these are correct.
b. Protection against foreign substances 5. Given the methods of transporting
carbon dioxide in the blood:
c. Maintenance of body temperature
(1) Bicarbonate ions
d. Regulation of pH and osmosis
(2) Combined with blood proteins
e. All of these are correct.
(3) Dissolved in plasma
2. Which of the following is not a
component of plasma? Choose the arrangement that lists them in
the correct order from the largest to
a. Nitrogen smallest percentage of carbon dioxide
transported.
b. Sodium ions
a. 1, 2, 3
c. Platelets
.b. 1, 3, 2
d. Water
c. 2, 3, 1
e. Urea
d. 2, 1, 3
3. Which of the following proteins is
typically found in plasma and plays a e. 3, 1, 2
significant role in maintaining the
osmotic concentration of blood? 6. Each hemoglobin molecule can
become associated with how many
a. Albumin oxygen molecules?
b. Fibrinogen a. One
c. Platelets b. Two
d. Hemoglobin c. Three
e. Globulins d. Four
4. Red blood cells e. An unlimited number of
a. Are the least numerous formed element 7. Erythropoietin
in the blood.
a. Is mainly produced by the heart.
b. Are phagocytic cells.
b. Inhibits the production of red blood cells.
c. Are produced in the yellow marrow.
c. Production increases when blood oxygen
decreases. 11. The most numerous type of white blood
cell, whose primary function is phagocytosis,
d. Production is inhibited by testosterone. is
e. All of these are correct. a. eosinophils.
8. Which of the following changes b. basophils.
occur in the blood in response to the
initiation of a vigorous exercise c. neutrophils.
program?
d. monocytes.
a. Increased erythropoietin production
e. lymphocytes.
b. Increased concentration of reticulocytes
12. Monocytes
c. Decreased bilirubin formation
a. are the smallest white blood cells.
d. Both a and b are correct.
b. increase in number during chronic
e. All of these are correct. infections.
9. Which of the components of c. give rise to neutrophils.
hemoglobin is correctly matched
with its fate following the d. produce antibodies.
destruction of a red blood cell? 13. The smallest white blood cells, which
a. Heme—reused to form a new hemoglobin include B cells and T cells, are
molecule
b. Globin—broken down into amino acids a. eosinophils.
c. Iron—mostly secreted in bile b. basophils
d. All of these are correct. c. neutrophils.
10. The blood cells that protect against d. monocytes.
worm parasites are
e. lymphocytes.
a. Eosinophils
14. Platelets
b. Basophils
a. are derived from megakaryocytes.
c. Neutrophils
b. are cell fragments.
d. Monocytes
c. have surface molecules that attach to
e. Lymphocytes collagen.
d. play an important role in clot formation. 18. The extrinsic pathway
e. All of these are correct. a. begins with the release of thromboplastin
(tissue factor).
15. Given these processes in platelet plug
formation: (1) platelet adhesion (3) platelet b. leads to the production of activated
release reaction (2) platelet aggregation factor X.
Choose the arrangement that lists the c. requires Ca2+
processes in the correct order after a blood
vessel is damaged. d. All of these are correct.
a. 1,2,3 19. The chemical involved in the breakdown
of a clot (fibrinolysis) is
c. 3,1,2
a. antithrombin.
e. 2,3,1
b. fibrinogen.
b. 1,3,2
c. heparin
d. 3,2,1
d. plasmin.
16. A constituent of plasma that forms the
network of fibers in a clot is e. sodium citrate.
a. fibrinogen. c. platelets. e. prothrombinase. 20. A person with type A blood
b. tissue factor. d. thrombin. a. has anti-A antibodies.
17. Given these chemicals: b. has type B antigens.
(1) activated factor XII (3) prothrombinase c. will have a transfusion reaction if given
type B blood.
(2) fibrinogen (4) thrombin
d. All of these are correct.
Choose the arrangement that lists the
chemicals in the order they are used during 21. In the United States, the most common
clot formation. blood type is
a. 1,3,4,2 a. A positive
b. 2,3,4,1 b. B positive
c. 3,2,1,4 c. O positive
d. 3,1,2,4 d. O negative.
e. 3,4,2,1 e. AB negative.
