L16 QS BANK, BMS201 Quiz PDF

Histology of Blood Leukocytes (WBCs) Quiz Part One: Simple MCQs 1. What is the normal range for the number of leukocytes (WBCs) in a microliter (µL) of blood? ○ A) 1,000-3,000 ○ B) 4,000-11,000 ○ C) 15,000-20,000 ○ D) 25,000-30,000 2. Which type of leukocyte is characterized by a multil...

Histology of Blood Leukocytes (WBCs) Quiz Part One: Simple MCQs 1. What is the normal range for the number of leukocytes (WBCs) in a microliter (µL) of blood? ○ A) 1,000-3,000 ○ B) 4,000-11,000 ○ C) 15,000-20,000 ○ D) 25,000-30,000 2. Which type of leukocyte is characterized by a multilobed nucleus and pale pink specific granules? ○ A) Neutrophil ○ B) Eosinophil ○ C) Basophil ○ D) Lymphocyte 3. What is the primary function of eosinophils? ○ A) Phagocytosis of bacteria ○ B) Antiparasitic and antiallergic actions ○ C) Release of histamine ○ D) Antibody production 4. Which leukocytes are classified as agranulocytes? ○ A) Neutrophils and eosinophils ○ B) Lymphocytes and monocytes ○ C) Basophils and neutrophils ○ D) Eosinophils and basophils 5. What is the approximate percentage of lymphocytes among the total WBCs in blood? ○ A) 2-5% ○ B) 20-40% ○ C) 54-62% ○ D) Less than 1% 6. Which type of lymphocyte is responsible for humoral immunity (antibody-based immunity)? ○ A) B-lymphocyte ○ B) T-lymphocyte ○ C) Natural killer (NK) cell ○ D) Monocyte 7. What is the largest type of white blood cell? ○ A) Neutrophil ○ B) Eosinophil ○ C) Basophil ○ D) Monocyte 8. Which cells are responsible for presenting antigens to T helper cells, leading to adaptive immunity? ○ A) Neutrophils ○ B) Eosinophils ○ C) Basophils  ○ D) Monocytes and their derivatives (macrophages, etc.) 9. In granulopoiesis, at which stage do specific granules (neutrophilic, basophilic, or eosinophilic) start to appear? ○ A) Myeloblast ○ B) Promyelocyte ○ C) Myelocyte ○ D) Metamyelocyte 10. Where do T-lymphoblasts migrate to complete their maturation and acquire surface proteins characteristic of mature T-lymphocytes? ○ A) Bone marrow ○ B) Thymus gland ○ C) Lymph nodes ○ D) Spleen Part Two: Complex MCQs 11. A patient presents with a bacterial infection. Which type of leukocyte would you expect to see in increased numbers in their blood smear? ○ A) Eosinophils ○ B) Basophils ○ C) Neutrophils ○ D) Lymphocytes 12. Which of the following statements about neutrophils is INCORRECT? ○ A) They are rich in mitochondria and depend on aerobic respiration for energy. ○ B) They have a multilobed nucleus. ○ C) They are the most common type of white blood cell. ○ D) They play a key role in defense against acute bacterial infections. 13. Basophils and mast cells share similarities in their function and granule content. Which of the following is NOT found in the granules of both cell types? ○ A) Heparin ○ B) Histamine ○ C) Major basic protein (MBP) ○ D) Inflammatory mediators 14. Which type of lymphocyte is responsible for directly killing virus-infected cells and cancer cells? ○ A) B-lymphocyte ○ B) T helper cell ○ C) Cytotoxic T cell ○ D) Natural killer (NK) cell 15. What is the role of memory cells in the immune system? ○ A) Phagocytosis of pathogens ○ B) Production of antibodies during the initial exposure to an antigen ○ C) Generating a rapid and enhanced immune response upon re-exposure to the same antigen ○ D) Differentiation into plasma cells 16. Which of the following is a characteristic of small lymphocytes? ○ A) Abundant cytoplasm with many azurophilic granules ○ B) Large, indented nucleus  ○ C) Small, spherical nucleus with highly condensed chromatin ○ D) Kidney-shaped nucleus 17. Monocytes differentiate into various cells in the connective tissue. Which of the following is NOT derived from monocytes? ○ A) Macrophages ○ B) Osteoclasts ○ C) Microglia ○ D) Neutrophils 18. What happens to the nucleus during the maturation of granulocytes from myeloblast to mature cell? ○ A) It becomes larger and more rounded. ○ B) It undergoes gradual indentation to reach its final shape. ○ C) It remains unchanged. ○ D) It disappears completely. 19. Which cells are considered antigen-presenting cells (APCs)? ○ A) All types of lymphocytes ○ B) Monocytes and their derivatives ○ C) Granulocytes ○ D) Red blood cells 20. During granulopoiesis, at which stage do non-specific granules (azurophilic granules) first appear? ○ A) Myeloblast ○ B) Promyelocyte ○ C) Myelocyte ○ D) Metamyelocyte 21. Which of the following events occur during the development of monocytes from monoblast to mature monocyte? ○ A) The nucleus becomes multilobed. ○ B) Specific granules appear. ○ C) The nucleus undergoes slight indentation to reach its final kidney shape. ○ D) The cell size decreases significantly. 22. Where does the maturation of B-lymphocytes take place? ○ A) Thymus gland ○ B) Bone marrow ○ C) Lymph nodes ○ D) Spleen 23. What is the function of T helper cells in the immune system? ○ A) Direct killing of virus-infected cells ○ B) Production of antibodies ○ C) Secretion of interleukins that support the function of other immune cells ○ D) Phagocytosis of pathogens 24. Which type of leukocyte has a lifespan ranging from weeks to years? ○ A) Neutrophil ○ B) Eosinophil ○ C) Basophil ○ D) Lymphocyte 25. Which of the following statements regarding the granules in white blood cells is TRUE?  ○ A) Non-specific granules are lysosomes and are present only in granulocytes. ○ B) Specific granules are stained with the basic stain Azure A. ○ C) Agranulocytes contain both specific and non-specific granules. ○ D) Specific granules in eosinophils stain red with acidic stains. Answer Guide 1. B 2. A 3. B 4. B 5. B 6. A 7. D 8. D 9. C 10. B 11. C 12. A 13. C 14. C 15. C 16. C 17. D 18. B 19. B 20. B 21. C 22. B 23. C 24. D 25. D Done