BSC 2086: Test 1 Questions and Answers

BSC 2086: Test 1 Questions and Answers A healthy adult male has approximately __________ liters of blood. - Answer️️ -The average volume of circulating blood is approximately 5-6 liters in males and approximately 4-5 liters in females. Answer: 5-6 A major plasma protein that maintains the blood osmotic pressure is __________. - Answer️️ -Answer: albumin Albumin constitutes 60% of plasma protein and primarily functions in maintaining water balance between blood and body tissues. Diapedesis refers to __________. - Answer️️ -Answer:the movement of leukocytes from blood vessels into tissue spaces Granulocytes do NOT include __________. - Answer️️ -Answer: Monocytes Monocytes lack granules in their cytoplasm and are agranulocytes. Mature red blood cells in the circulating blood are filled with __________. - Answer️️ - Answer: hemoglobin molecules Pernicious anemia may result from __________. - Answer️️ -the lack of vitamin B12 in the diet or a deficiency of the intrinsic factor needed to absorb B12 The final step in clot formation is __________. - Answer️️ -fibrinogen → fibrin The most numerous leukocyte is the __________. - Answer️️ -Neutrophils make up 50-70% of the leukocyte population. The terms biconcave and anucleated apply to __________. - Answer️️ -red blood cells Which leukocyte contains histamine in its granules? - Answer️️ -basophils Which of the following is a protective function of blood? - Answer️️ -preventing infection Which of the following statements about platelets is INCORRECT? - Answer️️ - Answer:The life span of platelets is between 30 to 60 days. Actually....The life span of platelets is between 5 and 10 days. Which property do white blood cells have in common? - Answer️️ -WBCs are nucleated and have a protective function. Individuals with malaria have a better chance of surviving if they have which type of anemia? - Answer️️ -Answer:sickle-cell anemia RBCs infected with malaria stick to walls of blood vessels and lose potassium, causing the parasite to die. Which of the following types of white blood cells kills parasitic worms, destroys antibody complexes, and inactivates some inflammatory chemicals of allergy? - Answer️️ - Eosinophils do all of the described actions. Which of the following is a function of neutrophils? - Answer️️ -Neutrophils phagocytize bacteria. Which of the following is a function of erythrocytes? - Answer️️ -transpo