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Blood MCQs with Answers

Blood MCQs with Answer

1. To which of the following would the term “white cell” NOT be applied?
A. erythrocyte
B. leucocyte
C. lymphocyte
D. monocyte

2. In the haemostasis process, what forms as a result of the extrinsic and intrinsic pathways?
A. fibrin
B. thrombin
C. a platelet plug
D. prothrombinase

3. The blood group known as the ABO system is based on the presence of what proteins on blood cells?
A. antibodies
B. antigens
C. agglutinins
D. immunoglobulins

4. What is found in blood serum that is also in blood plasma?
A. blood cells
B. platelets
C. plasma proteins
D. clotting factors

5. What is the term “formed elements” used to mean in a description of blood?
A. white blood cells, red blood cells and platelets
B. blood plasma
C. blood serum
D. the clotting factors in blood

6. What is the SECOND step in the three phases of haemostasis listed below?
A. The vascular phase
B. The intrinsic pathway
C. The extrinsic pathway
D. The platelet phase

7. What type of blood may a patient with blood type “B+” be infused with? Any blood that is
A. positive for rhesus antigen D
B. negative for rhesus antigen D
C. negative for antigen B
D. negative for antigen A

8. What is the first process that occurs after a blood vessel is damaged?
A. coagulation

B. platelet plug formation
C. vasoconstriction
D. haemolysis

9. Which blood cells are involved in protecting the body from pathogens and foreign cells?
A. erythrocytes
B. leucocytes
C. platelets
D. haemoglobin

10. Which individuals can receive any type of blood and are considered universal recipients?
A. A+
B. O−
C. AB+
D. B−

11. Which is the most abundant plasma protein?
A. alpha- and beta- globulins
B. albumin
C. mitochondria
D. haemoglobin

12. Which characteristic of blood refers to the concentration of solutes?
A. salinity
B. pH
C. osmolality
D. viscosity

13. Which type of white blood cell is responsible for engulfing pathogens during phagocytosis?
A. thrombocyte
B. neutrophil
C. erythrocyte
D. basophil

14. What does “Rhesus positive” refer to?
A. The presence of antigen D on the surface of red blood cells
B. The final factor involved in blood clotting
C. The presence of the rhesus antibody/agglutinin in the blood
D. A deficiency of Factor VIII that results in haemophilia

15. What are red blood cells primarily composed of?
A. alpha- and beta- globulins
B. albumin
C. mitochondria
D. haemoglobin

16. Which is the LEAST common type of white blood cell?
A. lymphocyte
B. basophil
C. thrombocyte
D. neutrophil

17. In the process of haemostasis, which phase involves the intrinsic and extrinsic pathways?
A. the platelet phase
B. the clot lysis phase
C. the vascular phase
D. the coagulation phase

18. In haemostasis, which molecule polymerises to become the insoluble blood clot?
A. factor X
B. thrombin
C. fibrin
D. plasmin

19. Which enzyme converts fibrinogen to fibrin?
A. serotonin
B. thrombin
C. renin
D. secretin

20. Which of the following is NOT a macrophage?
A. Kupffer cell
B. Monocyte
C. Dendrocyte
D. Megakaryocyte

21. What can be said about a person who has the “A” antigen on their red blood cells?
A. their blood contains anti-B agglutinins
B. their blood contains anti-A agglutinins
C. their blood contains anti-A and anti-B agglutinins
D. their blood contains neither anti-A nor anti-B agglutinins

22. Which one of the following is NOT a plasma protein?
A. keratin
B. albumin
C. ferritin
D. globulin

23. What substance is produced by the first step in the blood clotting (coagulation) process?
A. thrombin
B. prothrombin
C. factor X

D. prothrombinase

24. Which statement about neutrophils is correct?
A. they have no nucleus
B. they contain haemoglobin
C. they function as a body defence mechanism
D. eosinophils are one type of neutrophil

25. What are red blood cells also known as?
A. erythrocytes
B. thrombocytes
C. monocytes
D. eosinophils

26. In blood clotting, what activates “factor X”
A. prothrombinase
B. thrombin
C. the extrinsic pathway
D. tissue plasminogen activator

27. A person’s blood group is determined by:
A. the agglutinogens circulating in their plasma
B. the antigens on the surface of their red blood cells
C. the antibodies on the surface of their red blood cells
D. the agglutinins circulating in their plasma

28. If a blood sample is taken for DNA testing, which of the following would be examined?
A. leucocytes
B. erythrocytes
C. thrombocytes
D. plasma proteins

29. What is the major task of red blood cells?
A. to transport carbon dioxide
B. to ensure haemostasis
C. to provide immunity
D. to transport oxygen

30. Careful blood matching is performed prior to transfusing blood in order to avoid which scenario?
A. newborn haemolytic disease
B. the recipient’s antigens attacking the red blood cells in the transfusion
C. the recipient’s antibodies attacking the red blood cells in the transfusion
D. the antigens on the recipient’s red blood cells reacting with the antibodies in the transfused blood

31. Which cell in the list below is the MOST common white blood cell?
A. basophils
B. lymphocytes
C. monocytes
D. neutrophils

32. What substance is the product of the second step in the blood clotting process?
A. thrombin
B. prothrombin
C. prothrombin activator
D. fibrin

33. A person whose blood group is “B positive” has which of the following?
A. the rhesus D antigen and the B antigen on their rbc, and the anti-A agglutinin.
B. the rhesus D antigen and the B antigen on their rbc, and the anti-B agglutinin.
C. the rhesus D antigen and the A antigen on their rbc, and the anti-B agglutinin
D. no rhesus D antigen and the B antigen on their rbc, and the anti-A agglutinin

34. The role of platelets in blood clotting includes all of the following EXCEPT one. Which one?
A. to form a plug in the hole of the damaged blood vessel
B. to convert prothrombin to thrombin
C. to release chemicals to attract other platelets
D. to adhere to exposed collagen fibres in damaged blood vessels

35. If someone’s ABO blood group is “type A”, this means that
A. they have the type A antigen on their red blood cells
B. their blood contains anti-A agglutinins
C. they can receive blood from a type B donor
D. they may donate blood to a type B recipient

36. Which statement below about vitamin K is true?
A. It is water soluble.
B. It is essential for prothrombin production by the liver.
C. It is part of the “extrinsic pathway” of formation of prothrombin activator.
D. It destroys fibrin so allowing a clot to gradually dissolve.

37. What is the function of the plasma proteins in blood?
A. to transport oxygen.
B. to regulate electrolyte balance
C. to exert osmotic pressure and so help maintain blood volume.
D. to function as a non-specific body defence mechanism.

38. The term “formed elements” used in relation to the blood include which of the following?
A. fibrinogen.
B. white blood cells.
C. electrolytes

D. plasma proteins.

39. Which blood cell fits the following description: multi-lobed nucleus, inconspicuous cytoplasmic granules, most common type of blood cell except for red blood cells?
A. neutrophil
B. eosinophil
C. basophil
D. lymphocyte

40. What constitutes blood plasma?
A. whole blood without the formed elements.
B. blood without the red blood cells.
C. whole blood without blood cells and clotting factors.
D. blood minus blood cells and proteins.

41. Which of the following statements about a person with blood group “A” is true? They have the:
A. A antigen on their red blood cells.
B. anti-A antibodies in their plasma.
C. anti-A agglutinogen on their red blood cells.
D. A antibody on their red blood cells.

42. Which of the following statements concerning intracellular and extracellular fluids is FALSE?
A. The concentration of sodium is higher in extracellular fluid than in intracellular fluid.
B. The concentration of potassium is lower in extracellular fluid than in intracellular fluid.
C. Blood plasma is an example of intracellular fluid.
D. The volume of intracellular fluid is greater than that of extracellular fluid.

43. Which of the following is not a type of white blood cell?
A. leucocyte
B. eosinophil
C. erythrocyte
D. neutrophil

44. Which of the following formed elements of the blood is important in the formation of clots?
A. erythrocytes
B. lymphocytes
C. monocytes
D. thrombocytes

45. With which blood types can a person with blood type B be safely transfused?
A. A or AB
B. B or O
C. A or O
D. B or AB

46. Leucocytes may be correctly described as what?
A. cells with nuclei that do not contain haemoglobin.
B. cells without nuclei, that contain haemoglobin.
C. white blood cells with granules in their cytoplasm.
D. neutrophilic.

47. What are lymphocytes? Blood cells that:
A. mature and proliferate in the bone marrow.
B. contain haemoglobin.
C. are involved in the body’s immune response
D. mature into macrophages.

48. Which of the following statements about platelets is INCORRECT? They:
A. adhere to collagen fibres of damaged tissue
B. release phospholipids which combine with “clotting factors” to produce prothrombin activator.
C. are cell fragments derived from megakayoblasts
D. are part of the “extrinsic pathway” for the formation of prothrombin activator.

49. Finish the sentence correctly. Plasma proteins:
A. help maintain blood volume due to colloid osmotic pressure.
B. are regarded as formed elements of the blood.
C. are low molecular weight proteins.
D. are part of the blood serum.

50. The colloid osmotic pressure of blood is due to which of the following?
A. proteins in the blood
B. proteins in the interstitial fluid
C. sodium and chloride ions dissolved in blood
D. the water component of the blood

51. Which one of the following terms refers to an abnormally low number of white blood cells?
A. thrombocytosis
B. haemostasis
C. leukopenia
D. cytokinesis

52. Which of the following three proteins are known as “plasma proteins”?
A. albumin, globulin, haemoglobin
B. insulin, glucagon, haemoglobin
C. fibrin, globulin, albumin
D. albumin, fibrinogen, globulin

53. Which are the two most common types of white blood cells?
A. neutrophils and lymphocytes
B. erythrocytes and neutrophils
C. neutrophils and eosinophils
D. monocytes and lymphocytes

54. Blood plasma contains “plasma proteins”. Which of the following lists the plasma proteins?
A. insulin, kaolin, bilirubin
B. cholesterol, urea, glucagon
C. Na+, K+, Ca2+, Mg2+
D. albumins, fibrinogen, globulins

55. What causes the blood’s osmotic pressure to be greater than the osmotic pressure of the surrounding interstitial fluid that is outside of the capillaries?
A. there is a higher concentration of sodium and chloride ions in the blood than the interstitial fluid.
B. there is a higher concentration of water in the blood than in the interstitial fluid.
C. the plasma proteins in blood.
D. the hydrostatic pressure produced by the heart’s contractions.

56. What does the term “neutrophil” refer to?
A. An affinity for neutrons.
B. An abnormally low number of cells.
C. A type of white blood cell.
D. An immature cell that will become a neutrocyte.

57. One of the following cells does NOT occur in blood. Which one?
A. erythrocytes
B. basophils
C. leucocytes
D. osteocytes

58. What would a person with type A blood also have?
A. antibody A
B. antigen A
C. agglutinin A
D. agglutinogen B

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