HEMA BOC REVIEWER QUESTIONS AND ANSWERS A+ GRADED .Buy Quality Materials!

HEMA BOC REVIEWER QUESTIONS AND ANSWERS A+ GRADED .Buy Quality Materials! The light-colored zone adjacent to the nucleus in a plasmacyte is the: A. Ribosome B. Chromatin C. Mitochondria D. Golgi area D. Golgi area The following are compounds formed in the synthesis of heme: 1. coproporphyrinogen 2. porphobilinogen 3. uroporphyrinogen 4. protoporphyrinogen A. 4,3,1,2 B. 2,3,1,4 C. 4,2,3,1 D. 2,1,3,4 B. 2,3,1,4 The majority of the iron in an adult is found as a constituent of: A. hemoglobin B. hemosiderin C. myoglobin D. transferrin A. hemoglobin The main function of the hexose monophosphate shunt in the erythrocyte is to: A. regulate the level of 2,3-DPG B. provide reduced glutathione to prevent oxidation of hemoglobin C. prevent the reduction of heme iron D. provide energy for membrane maintenance B. provide reduced glutathione to prevent oxidation of hemoglobin B. B Refer to the following illustration: Which curve represents the production of alpha polypeptide chains of hemoglobin? A. A B. B C. C D. D D. D Refer to the following illustration: Which curve represents the production of beta polypeptide chains of hemoglobin? A. B B. C C. E D. D C. C Refer to the following illustration: Which curve represents the production of gamma polypeptide chains of hemoglobin? A. A B. B C. C D. D D. E Refer to the following illustration: Which curve represents the production of delta polypeptide chains of hemoglobin? A. B B. C C. D D. E A. A Refer to the following illustration: Which curve represents the production of epsilon polypeptide chains of hemoglobin? A. A B. B C. C D. D In order for hemoglobin to combine reversibly with oxygen, the iron must be: A. complexed with haptoglobin B. freely circulating in the cytoplasm C. attached to transferrin D. in the ferrous state D. in the ferrous state In which of the following disease states are teardrop cells and abnormal platelets most characteristically seen? A. hemolytic anemia B. multiple myeloma C. G-6-PD deficiency D. myeloid metaplasia D. myeloid metaplasia The characteristic erythrocyte found in pernicious anemia is: A. microcytic B. spherocytic C. hypochromic D. macrocytic D. macrocytic In the normal adult, the spleen acts as a site for: A. storage of red blood cells B. production of red blood cells C. synthesis of erythropoietin D. removal of imperfect and aging cells D. removal of imperfect and aging cells After the removal of red blood cells from the circulation hemoglobin is broken down into: A. iron, porphyrin, and amino acids B. iron, protoporphyrin, and globin C. heme, protoporphyrin, and amino acids D. heme, hemosiderin, and globin B. iron, protoporphyrin, and globin Heinz bodies are: A. readily identified with polychrome stains B. rarely found in glucose-6-phosphate dehydrogenase deficient erythrocytes C. closely associated with spherocytes D. denatured hemoglobin inclusions that are readily removed by the spleen D. denatured hemoglobin inclusions that are readily removed by the spleen Hemolysis in paroxysmal nocturnal hemoglobinuria (PNH) is: A. temperature-dependent B. complement-independent C. antibody-mediated D. caused by a red cell membrane defect D. caused by a red cell membrane defect Cells for the transport of O2 and CO2 are: A. erythrocytes B. granulocytes C. lymphocytes D. thrombocytes A. erythrocytes Erythropoietin acts to: A. shorten the replication time of the granulocytes B. stimulate RNA synthesis of erythroid cells C. increase colony-stimulating factors produced by the B-lymphocytes D. decrease the release of marrow reticulocytes B. stimulate RNA synthesis of erythroid cells What cell shape is most commonly associated with an increased MCHC? A. teardrop cells B. target cells