chapter 11 blood

Each heme group in a molecule of hemoglobin contains ________ atom(s) of iron. Select one: a. 1 b. 2 c. 3 d. 4 e. 1/2

a. 1

Platelets are Select one: a. cytoplasmic fragments. b. giant, multinucleated cells. c. immature leukocytes. d. both A and B e. all of the above

a. cytoplasmic fragments.

Platelets release ________, which causes local vasoconstriction. Select one: a. serotonin b. prostaglandin c. epinephrine d. collagen e. fibrin

a. serotonin

The clotting proteins in blood plasma are Select one: a. transport proteins. b. albumins. c. collagen. d. fibrinogens. e. globulins.

b. albumins.

The intrinsic pathway of coagulation is activated by Select one: a. the release of tissue factor by damaged endothelium. b. the activation of a proenzyme exposed to collagen. c. the release of heparin from the liver. d. the conversion of prothrombin to thrombin. e. the sticking of platelets to damaged tissue.

b. the activation of a proenzyme exposed to collagen.

Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with various antisera. His blood cells agglutinate when mixed with the anti-A sera and anti-Rh sera, but not with the anti-B sera. This means Select one: a. Bill could receive type B blood in a transfusion. b. Bill is Rh-positive. c. Bill's plasma contains anti-B antibodies. d. Bill's plasma would cross-react with type 0 negative red blood cells. e. Bill could donate blood to an individual with type AB blood.

c. Bill's plasma contains anti-B antibodies.

Type AB blood contains Select one: a. B agglutinins in the plasma. b. A agglutinins on the red blood cells. c. agglutinogen A and B. d. B agglutinogens on the red blood cells. e. agglutinin A and B

c. agglutinogen A and B.

Plasma is the ________ fraction of blood. Select one: a. serum. b. packed blood. c. extracellular fluid. d. whole blood. e. lymphatic fluid.

c. extracellular fluid.

During a viral infection, you would expect to see increased numbers of Select one: a. neutrophils. b. thrombocytes. c. lymphocytes. d. basophils. e. eosinophils.

c. lymphocytes.

The least numerous white blood cells in peripheral circulation are the Select one: a. eosinophils. b. lymphocytes. c. neutrophils. d. basophils. e. monocytes.

d. basophils.

Neutrophils, eosinophils, and basophils are all specifically classified as

granulocytes

The process of stopping bleeding is called

hemostasis

The white blood cells that are important in leaving the blood vessels and phagocytizing large materials are Select one: a. monocytes. b. eosinophils. c. basophils. d. lymphocytes. e. neutrophils.

a. monocytes.

________ are large phagocytic WBCs that are "transformed" into phagocytic macrophages at the site of an injury. Select one: a. Neutrophils b. Monocytes c. Lymphocytes d. Eosinophils e. Basophils

b. Monocytes

Which of the following is an agranulocyte? Select one: a. eosinophil b. monocyte c. erythrocyte d. WBC e. thrombocyte

b. monocyte

Thrombocytopenia is a deficiency of Select one: a. antibodies. b. platelets. c. erythrocytes. d. WBC. e. all of the above

b. platelets.

The basic event that causes a blood clot to form is the change of Select one: a. Factor X to Factor Xa. b. vitamin K to prothrombin. c. fibrinogen to fibrin. d. PDGF to platelet. e. prothrombin to thrombin.

c. fibrinogen to fibrin.

A person's blood type is determined by the Select one: a. shape of the red blood cells. b. number of specific molecules on the plasma membrane. c. presence or absence of specific molecules on the plasma membrane. d. size of the red blood cells. e. chemical character of the hemoglobin.

c. presence or absence of specific molecules on the plasma membrane.

Which of the following is a necessary cofactor in the formation of a blood clot? Select one: a. vitamin K b. prothrombin c. albumin d. calcium e. fibrinogen

d. calcium Correct

Which of the following is the MOST active phagocytically? Select one: a. basophils b. eosinophils c. erythrocytes d. neutrophils e. lymphocytes

d. neutrophils

EPO is released when Select one: a. carbon dioxide levels in the blood decrease. b. protein levels in the blood increase. c. carbon dioxide levels in the blood increase. d. oxygen levels in the blood decrease. e. oxygen levels in the blood increase

d. oxygen levels in the blood decrease.

The main event of the coagulation phase is Select one: a. the formation of a platelet plug. b. clot retraction. c. the contraction of platelets. d. the activation of fibrinogen. e. vascular spasm.

d. the activation of fibrinogen.

Calcium ions and ________ have an effect on nearly every aspect of the clotting process. Select one: a. vitamin E b. vitamin D c. thiamin d. vitamin K e. vitamin A

d. vitamin K

Which of the following vitamins is needed for the formation of clotting factors? Select one: a. vitamin A b. vitamin B c. vitamin C d. vitamin K e. vitamin E

d. vitamin K

Functions of the blood include Select one: a. restricting fluid loss. b. body defense. c. regulation of pH and electrolyte concentration of interstitial fluids. d. transport of nutrients and wastes. e. all of the above

e. all of the above

Neutrophils Select one: a. are granular leukocytes. b. are active in fighting bacterial infection. c. are phagocytic. d. have lobed nuclei. e. all of the above

e. all of the above

Platelets function in Select one: a. transporting chemicals important for clotting. b. contraction after clot formation. c. initiating the clotting process. d. forming temporary patches in injured areas. e. all of the above

e. all of the above

Pus contains Select one: a. damaged body cells. b. leukocytes. c. platelets. d. bacteria. e. all of the above

e. all of the above

A sample of tissue from an injury shows a large number of eosinophils. This would indicate that the tissue was Select one: a. inflamed. b. being rejected. c. infected by viruses. d. abscessed. e. infected by parasites.

e. infected by parasites.

The common pathway of coagulation ends with Select one: a. the release of tissue factor by damaged endothelium. b. the activation of a proenzyme exposed to collagen. c. the sticking of platelets to damaged tissue. d. the activation of a clotting factor that converts prothrombin to thrombin. e. the activation of a clotting factor that converts fibrinogen to fibrin.

e. the activation of a clotting factor that converts fibrinogen to fibrin.