BIO202 Exam 2 (from Chapter 17)

Which of the following is NOT regulated by blood? - fluid volume - pH level - nutrient level - body temperature

which of the following plasma proteins is improperly matched with its function? - alpha globulin: transport of metal ions and fat-soluble vitamins. - fibrinogen: clotting. - gamma globulins: lipid transport. - albumin: osmotic pressure.

in a centrifuged sample of blood, what should NOT be in the plasma portion of the sample? - fibrinogen - albumin - platelets - electrolytes

which plasma constituent is the main contributor to clotting? - beta globulins - albumin - alpha globulins - fibrinogen

what triggers erythropoietin (EPO) release that leads to the production of new red blood cells? - a high hematocrit - reduced availability of oxygen - too many platelets - excess oxygen in the bloodstream

which part of the hemoglobin molecule binds carbon dioxide for transport? - iron - amino acids of the globin - heme group - spectrin

choose the statement that is true concerning hemoglobin. - it can bind a maximum of three oxygen molecules. - it is composed of four protein chains and four heme groups. - it is found in the plasma portion of the blood. - when hemoglobin is not bound to oxygen, it appears blue.

which of the following does NOT stimulate erythrocyte production? - erythropoietin - testosterone - a drop in blood oxygen levels - hyperventilating

from which cells do the granulocytes descend? - mono blast - lymphoid stem cell - myeloblast - promonocyte

which of the following leukocytes is not correctly matched with its function? - monocytes: develop into macrophages. - basophils: inflammation. - lymphocytes: immune response against viral infections. - neutrophils: produce antibodies.

what factor stimulates platelet formation? - G-CSF - thrombopoietin - PDGF - erythropoietin

hemostasis is important for: - red blood cell production - white blood cell production - red blood cell recycling - stoppage of bleeding

which step of hemostasis involves activation of formed elements in the blood? - fibrinolysis - platelet plug formation - vascular spasm - fibrin mesh formation

which of the following represents a difference between extrinsic and intrinsic blood clotting pathways? - one involves calcium ions, while the other does not. - one leads to the formation of prothrombin activator and the other does not. - one is faster than the other. - one can be triggered by tissue damage, while the other cannot.

which of the following would NOT lead to a bleeding disorder? - thrombocytopenia - excess calcium in the diet - vitamin K deficiency - impaired liver function

with a patient who is administered an injection of colony stimulating factor (CSF), you would expect to see: - increased red blood cell count - increased white blood cell count decreased red blood cell count - decreased white blood cell count

lipids (either nutrients or hormones) are insoluble in water but are found traveling in the plasma of the blood. Which of the following is the most likely explanation for this? - lipids are carried only in the lymph which is primarily composed of unsaturated fats. -lipids are carried inside blood cells. - enzymes in the plasma convert lipids to soluble forms. - lipids are carried in plasma bound to soluble plasma transport proteins.

what part of the body does erythropoietin (EPO) target to increase erythropoiesis? - liver - kidneys - lungs - bone marrow

what erythrocyte production disorder results from an autoimmune disease associated with insufficient vitamin B12 absorption? - aplastic anemia - hemorrhagic anemia - renal anemia - pernicious anemia

which of these is most likely in the event of excessive consumption of erythrocytes by macrophages? - the hematocrit would rise - blood levels of bilirubin would rise - erythropoietin levels would fall - blood levels of oxygen would rise

blood reticulocyte counts provide information regarding: - rate of platelet formation - clotting ability of the blood - WBC ability to defend the body against disease - rate of erythrocyte formation

if a person is severely dehydrated you would expect to see all of the following except - lower plasma levels - higher blood viscosity - higher hematocrit - lower immunity

viscosity of the blood is highest when: - HbA1C levels are lowest - plasma levels are highest - hemoglobin levels are lowest - hematocrit is highest

all of the following can be expected with polycythemia except: - high hematocrit - high blood pressure - increased blood volume - low blood viscosity

which of these develops from lymphoid stem cells? - plasma cells - erythrocytes - granulocytes - monocytes

a patient has a suspected electrolyte imbalance, what blood test would reveal an electrolyte imbalance? - platelet count - differential white blood cell count - Comprehensive Medical Panel (CMP) - Complete Blood Count (CBC)

which type of leukocyte provides protection against parasitic worms? - lymphocyte - neutrophil - eosinophil - basophil

which granular leukocytes act as our body's bacteria killers and would dramatically increase in number during a bacterial infection? - monocytes - neutrophils - basophils - lymphocytes

which of the following is the parent cell for all formed elements of the blood? - polymorphonuclear cell - hematopoietic stem cell - normoblast - megakaryocyte

the cells responsible for producing platelets are called: - megakaryocytes - mono blasts - lymphoid stem cells - myeloblasts

what primary germ layer is responsible for producing both blood cells and phagocytic brain glial cells? - mesoderm - ectoderm - endoderm - periderm

what enzyme removes unneeded clots after healing has occurred? - thrombin - plasminogen - fibrin - plasmin

what protein involved in coagulation provides the activation for the final step in clotting? - thrombin - fibrin - prothrombin activator - fibrinogen

Why is liver dysfunction associated with bleeding disorders? - the liver is the primary source of platelets, which are needed in sufficient numbers to produce the platelet plug. - the liver is the primary source of clotting factors, which are required in sufficient numbers for coagulation. - the liver is the primary source of calcium ions, which are required for all phases of hemostasis. - the liver synthesizes vitamin K, which is needed to produce four of the clotting factors.

loss of fibrinogen within the plasma would most likely cause which of the following? - fever with pain - pallor (pale skin) - loss of blood clotting - edema

what type of connective tissue cells are similar to basophils in that they contain granules that release histamine to mediate the inflammatory response? - fibroblast - adipocytes - mast cells - macrophages

which of these is true of the materials making up the Buffy coat in centrifuged blood? - they are less dense than both erythrocytes and plasma. - they are denser than plasma and erythrocytes. - they are intermediate in density between erythrocytes and plasma. - they are denser than erythrocytes but less dense than plasma.

which blood component primarily contributes to plasma osmotic pressure? - electrolytes - gamma globulin - blood borne nutrients - albumin

which of the following is NOT a typical plasma protein? - fibrinogen - albumin - globulins - erythropoietin

what is the complete hemoglobin molecule composed of? - polypeptide chains (globins), heme groups, and iron ions. - heme groups and iron ions. - iron ions and polypeptide chains (globins). - heme groups and polypeptide chains (globins).

what is a young, anucleate erythrocyte called? - reticulocyte - hemopoietic stem cell - proerythroblast - polychromatic erythroblast

what part of the hemoglobin molecule is eventually metabolized to stercobilin in the feces? - transferrin - globin - a portion of the heme group - iron

which of the following anemias is correctly matched with its description? - aplastic anemia: results from excessive blood loss. - hemorrhagic anemia: results from red blood cells rupturing. - hemolytic anemia: results from inadequate iron intake. - pernicious anemia: results from a vitamin B12 deficiency .