Blood quiz 1

Which of the following statements about blood is FALSE? A. Blood performs immune functions. B. Blood is more viscous than water. C. Blood pH normally falls between 6.5 and 6.8. D. Blood helps maintain body temperature.

C. Blood pH normally falls between 6.5 and 6.8.

Some rat poisons contain a toxin that block's the liver's ability to utilize vitamin K. Animals that consume this poison would have problems with: A. thrombolysis. B. agglutination. C. coagulation. D. erythropoiesis.

C. coagulation

During a tapeworm infection, you would expect to see increased numbers of: A. lymphocytes. B. neutrophils. C. eosinophils. D. basophils

C. eosinophils

Which of the following must occur first during hemostasis? A. thrombolysis B. clot retraction C. formation of thrombin D. formation of fibrin

C. formation of thrombin

The carrier protein that transports absorbed iron through the blood is A. erythropoietin. B. intrinsic factor. C. transferrin. D. thrombopoietin. E. hemoglobin.

C. transferrin

Which of the following blood types would agglutinate if donated to a person with blood type A+? A. B- B. O+ C. A- D. O-

A. B-

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 serum and anti-Rh serum, but not with the anti-B serum. This means A. Bill's plasma contains anti-B antibodies. B. Bill could receive type B blood in a transfusion. C. Bill's plasma would cross-react with type O negative red blood cells. D. Bill could donate blood to an individual with type AB blood. E. Bill is Rh-negative

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

When neither anti-A sera nor anti-B sera clot on a blood plate with donor blood, the blood is type ________. A. O B. B C. A D. AB

A. O

Which blood type is called the universal donor? A. O B. AB C. B D. A

A. O

Which statement best describes the function of albumins? A. They primarily affect the movement of fluid into capillaries by creating an osmotic gradient. B. They aid in the structural form of the erythrocyte. C. They are the key substance in the formation of blood clots. D. They transport lipids, playing a role in clotting and defending the body against foreign substances. E. They provide the nutrients needed to replicate erythrocytes.

A. They primarily affect the movement of fluid into capillaries by creating an osmotic gradient.

During the recycling of hemoglobin, what is the breakdown product of the globular proteins of each hemoglobin molecule? A. amino acids B. stercobilins C. transferrin D. bilirubin E. urobilins

A. amino acids

What type of leukocyte secretes heparin? A. basophils B. eosinophils C. lymphocyte D. neutrophils E. monocytes

A. basophils

Platelets are A. cytoplasmic fragments. B. fixed macrophages. C.surface antigens. D. immature leukocytes. E. giant, multinucleated cells.

A. cytoplasmic fragments.

What triggers erythropoietin release? A. decreased blood oxygen levels B. increased blood carbon dioxide level C. infection in the blood D. damage to a blood vessel wall and subsequent exposure of collagen E. infection in the tissues

A. decreased blood oxygen levels

Which type of white blood cell includes B and T cells? A. lymphocyte B. monocyte C. neutrophil D. eosinophil

A. lymphocyte

Through the microscope, you notice a very large leukocyte with a U-shaped nucleus. What type of leukocyte have you observed? A. monocyte B. basophil C. neutrophil D. lymphocyte

A. monocyte

What is a hematocrit measuring? A. the percentage of blood that is comprised of red and white blood cells B. the amount of hemoglobin in blood C. the percentage of blood that is comprised of red blood cells only D. the percentage of blood that is comprised of plasma E. the amount of oxygen that can be transported by blood

A. the percentage of blood that is comprised of red blood cells only

Without mitochondria, RBCs are relatively inefficient in terms of energy use, but advantageous to RBC function. Why? A. It stimulates the conversion of yellow bone marrow to red bone marrow. B. It ensures that any oxygen the RBCs absorb will be delivered to peripheral tissues. C. It ensures that its iron component will interact with the plasma protein, transferrin. D. It stimulates the absorption of vitamin B12. E. It ensures that its iron component is converted to bilirubin.

B. It ensures that any oxygen the RBCs absorb will be delivered to peripheral tissues.

What forms the majority of blood? A. leukocytes B. plasma C. platelets D. buffy coat

B. Plasma

Which statement best describes the function of globulins? A. They are the key substance in the formation of blood clots. B. They transport lipids, playing a role in clotting and defending the body against foreign substances. C. They provide the nutrients needed to replicate erythrocytes. D. They aid in the structural form of the erythrocyte. E. They primarily affect the movement of fluid into capillaries by creating an osmotic gradient

B. They transport lipids, playing a role in clotting and defending the body against foreign substances.

Mast cells in tissues are considered to be a type of A. eosinophil. B. basophil. C. monocyte. D. neutrophil. E. lymphocytE

B. basophil

The iron-containing ring in hemoglobin is called ________ and it binds ________. A. spectrin : carbon dioxide B. heme : carbon dioxide C. heme : carbon dioxide or oxygen D. globin : oxygen E. heme : oxygen

B. heme : oxygen

Which of the following is a protective function of blood? A. maintenance of normal pH in body tissue B. prevention of blood loss C. maintenance of body temperature D. maintenance of adequate fluid volume

B. prevention of blood loss

The most abundant formed elements are A. white blood cells. B. red blood cells. C. plasma proteins. D. platelets. E. inorganic molecules.

B. red blood cells.

Old red blood cells are removed from the blood by macrophages in what organ? A. bone marrow B. spleen C. pancreas D. kidney E. thymus

B. spleen

Which of these is not a normal plasma protein? A. albumin B. thromboplastin C. gamma globulin D. fibrinogen

B. thromboplastin

Which statement best describes the importance of the biconcave shape of erythrocytes? A. It allows for the movement of erythrocytes out of the capillaries. B.It allows for phagocytosis of foreign particles. C. It makes the erythrocyte small and flexible. D. It provides a large surface are for the exchange of gases. E. It conforms to the molecular shape of hemoglobin

D. It provides a large surface are for the exchange of gases.

What do vascular spasms contribute to the process of hemostasis? A. Vascular spasms cause platelets to adhere to exposed collagen. B. Vascular spasms cause activated platelets to release the contents of their granules. C. Vascular spasms transform fibrinogen into fibrin. D. Vascular spasms decrease blood vessel diameter to limit blood loss.

D. Vascular spasms decrease blood vessel diameter to limit blood loss.

Neutrophils are most effective at: A. fighting a viral infection. B. antibody formation. C. fighting a parasitic infection. D. fighting a bacterial infection.

D. fighting a bacterial infection

When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother? A. if the father is Rh+ B. if the child is type O positive C. if the child is Rh+ D. if the father is Rh-

D. if the father is Rh-

As red blood cells age ________. A. they will eventually be excreted by the digestive system B. iron will be excreted by the kidneys C. ATP production increases D. membranes "wear out" and the cells become damaged

D. membranes "wear out" and the cells become damaged

No visible cytoplasmic granules are present in ________. A. eosinophils B. basophils C. neutrophils D. monocytes

D. monocytes

What is the most abundant class of white blood cells? A. monocytes B. eosinophils C. lymphocytes D. neutrophils E. basophils

D. neutrophils

A person's blood type is determined by the chemical character of the hemoglobin. A. number of specific molecules on the plasma membrane. B. size of the red blood cells. C. shape of the red blood cells. D. presence or absence of specific surface antigens on the plasma membrane.

D. presence or absence of specific surface antigens on the plasma membrane.

Platelets function in A. initiating the clotting process. B. forming temporary patches in injured areas. C. contraction after clot formation. D. transporting chemicals important for clotting. E. All of the answers are correct.

E. All of the answers are correct.

Which of the following leukocytes has cytoplasmic granules? A. neutrophils only B. basophils only C. eosinophils only D. both basophils and eosinophils E. basophils, eosinophils, and neutrophils

E. basophils, eosinophils, and neutrophils

In the process of hemoglobin recycling, each heme molecule is stripped of its iron and converted to which pigmented organic compound? A. transferrin B. bilirubin C. stercobilin D. urobilin E. biliverdin

E. biliverdin

Which of the following leukocytes is a phagocyte? A. neutrophils only B. basophils only C. monocytes only D. both neutrophils and basophils E. both neutrophils and monocytes

E. both neutrophils and monocytes

Both the intrinsic and extrinsic pathways converge on activation of what factor, which then activates prothrombin? A. platelet factor B. calcium C. factor IV D. tissue factor E. factor X

E. factor X

Oxyhemoglobin consists of A .two hemes and an oxygen molecule. B. two oxygen molecules and two hemes. C. two hemes and four oxygen molecules. D. two oxygen molecule and a heme. E. four oxygen molecules and four hemes.

E. four oxygen molecules and four hemes.

A hemoglobin molecule is composed of A. just two protein chains. B. just three protein chains. C. four protein chains and four heme groups. D. four heme groups but no protein. E. just four protein chains and nothing else.

E. four protein chains and four heme groups.

What converts fibrinogen to fibrin? A. arachidonic acid B. plasmin C. prostacyclin D. von Willebrand factor E. thrombin

E. thrombin

Erythrocytes are synthesized in what organ and under the control of what chemical? A. liver, under control of bilirubin B. bone marrow, under control of bilirubin C. liver, under control of erythropoietin D. kidney, under control of transferrin E. bone marrow, under control of erythropoietin

bone marrow, under control of erythropoietin