Blood Quiz
A constriction of the arteries that carry blood to the kidneys would result in A. increased numbers of lymphocytes. B. increased erythropoiesis. C. decreased platelet production. D. decreased elimination of vitamin K. E. anemia.
B
The conversion of fibrinogen to fibrin is catalyzed by the enzyme _______________. A. fibrinogen-converting enzyme B. thrombin C. prothrombinase D. plasmin E. factor VIII
B
The plasma proteins that play a primary role in maintaining blood osmotic pressure are the A. fibrinogens. B. albumins. C. globulins. D. lipoproteins. E. plasminogens.
B
What organ in the body regulates erythrocyte production by sensing hypoxia? A. Liver B. Kidney C. Pancreas D. Spleen E. Brain
B
When a person who lives in a city at sea level vacations in the Rocky Mountains, you would expect to observe an increase in A. their white blood cell count. B. their red blood cell count. C. the number of platelets in their blood. D. the density of their bone marrow. E. the number of lymphocytes in their blood.
B
Which organ secretes most of the plasma proteins? A. brain B. liver C. kidney D. heart E. pancreas
B
________ involves a complex sequence of steps leading to the conversion of fibrinogen to fibrin. A. Fibrinolysis B. Coagulation C. The platelet phase D. Retraction E. Vascular spasm
B
A constriction of the arteries that carry blood to the kidneys would result in A. decreased elimination of vitamin K. B. anemia. C. increased erythropoiesis. D. decreased platelet production. E. increased numbers of lymphocytes.
C
Failure of the bone marrow to produce new red blood cells leads to ____________ anemia. A. hemorrhagic B. sickle-cell C. aplastic D. dietary E. pernicious
C
Plasma proteins that are important in body defense are the A. fibrinogens. B. metalloproteins. C. immunoglobulins. D. lipoproteins. E. albumins. F. glucose
C
The function of hemoglobin is to A. carry nutrients from the intestine to the body's cells. B. carry oxygen and aid in the process of blood clotting. C. carry oxygen. D. aid in the process of blood clotting. E. protect the body against infectious agents.
C
Which of the following is an anticoagulant? A. Fibrinogen B. Protease C. Heparin D. Prothrombin activator E. Plasmin
C
A person whose platelet count is abnormally low would be suffering from A. thrombocytosis. B. leukopenia. C. leukocytosis. D. thrombocytopenia. E. hemocytosis.
D
Ferritin is used to A. convert iron. B. synthesize iron. C. digest iron. D. store iron. E. transport iron.
D
Red blood cell production is regulated by the hormone A. angiotensin I. B. thymosin. C. myeloid colony stimulating factor. D. erythropoietin. E. aldosterone.
D
The _______________ is a procedure that is used to determine the number of each of the various types of white blood cells. A. sedimentation rate B. complete cell count (CBC) C. WBC count D. differential count E. hematocrit
D
The chief difference between plasma and interstitial fluid involves the concentration of ________________. A. nitrogen wastes B. electrolytes C. water D. proteins E. glucose
D
The hematocrit is a measure of the percentage of ______________ in a blood sample. A. platelets B. white blood cells C. red blood cells D. formed elements E. proteins
D
The porphyrin ring of heme contains an ion of A. magnesium. B. copper. C. calcium. D. iron. E. sodium.
D
The process of fibrinolysis A. forms emboli. B. activates fibrinogen. C. forms platelet plugs. D. dissolves clots. E. draws torn edges of damaged tissue closer together.
D
_______ is a condition in which the oxygen-carrying capacity of the blood is reduced. A. Thrombocytopenia B. Polycythemia C. Leukemia D. Anemia E. Leukopenia
D
A fibrin network that contains trapped blood cells and platelets is called a(n) _________________. A. granulation B. platelet plug C. colloid D. agglutination E. blood clot
E
A lack of intrinsic factor, leading to a deficiency of vitamin B 12 and reduced oxygen-carrying capacity of the blood is characteristic of: A. leukemia. B. sickle-cell anemia. C. polycythemia. D. aplastic anemia. E. pernicious anemia.
E
As red blood cells age: A. they will eventually be excreted by the digestive system. B. the hemoglobin content increases. C. ATP production increases. D. iron will be excreted by the kidneys. E. membranes "wear out" and the cells become damaged.
E
Blood is composed of all of the following, except A. plasma. B. blood cells. C. cell fragments. D. formed elements. E. interstitial fluid.
E
Platelets are A. small cells that lack a nucleus. B. large cells with a prominent, indented nucleus. C. small cells with a many-shaped nucleus. D. large cells that lack a nucleus. E. fragments of megakaryocytes.
E
Rat poison contains a toxin that blocks the liver's ability to utilize vitamin K. Consumption of rat poison would lead to death due to A. aplastic anemia. B. thrombocytopenia. C. asphyxiation. D. acidosis. E. hemorrhage.
E
The most abundant component of blood plasma is ____________. A. ions B. nutrients C. gases D. proteins E. water
E
Which of the following is not a phase of erythropoiesis? A. production of ribosomes B. synthesis of hemoglobin C. formation of a reticulocyte D. ejection of the erythrocyte nucleus E. production of vacuoles
E
A disease that damages the stomach lining and interferes with gastric secretions could cause A. pernicious anemia. B. leukocytosis. C. thrombocytopenia. D. jaundice. E. hemophilia.
A
All of the following can be expected with polycythemia except: A. low blood viscosity. B. high hematocrit. C. increased blood volume. D. increased oxygen carrying capacity. E. high blood pressure.
A
All of the following conditions impair coagulation except: A. vascular spasm. B. vitamin K deficiency. C. liver disease. D. destruction of red bone marrow. E. severe hypocalcemia (low blood calcium).
A
If a person is experiencing polycythemia, it may be due to A. having recently moved to a high altitude region. B. an inability to produce erythropoietin. C. reduced dietary iron intake. D. an inability to produce clotting factors. E. having recently stopped smoking.
A
Stem cells responsible for the production of white blood cells originate in the A.red bone marrow. B. thymus. C. spleen. D. lymph tissue. E. liver.
A
The following is a list of the steps involved in the process of hemostasis.1. coagulation2. fibrinolysis3. vascular spasm4. retraction5. platelet phaseThe correct sequence of these steps is A. 3, 5, 1, 4, 2 B. 5, 1, 4, 2, 3 C. 2, 3, 5, 1, 4 D. 4, 3, 5, 2, 1 E. 3, 5, 4, 1, 2
A
The process by which formed elements of the blood develop is called A. hemopoiesis. B. hemoblastosis. C. hematocritation. D. cytology. E. hemostasis.
A
Together, leukocytes and platelets comprise approximately ________ percent of total blood volume. A. 1 B. 45 C. 5 D. 10 E. 75
A
What is the average normal pH of blood? A. 7.4 B. 7.8 C. 8.4 D. 7.0 E. 4.7
A
