The Unknown and Unusual Facts About Blood
Questions on Blood: Answered!
1. WBCs which are the most active phagocytic cells
A. lymphocytes and macrophages
B. neutrophils and eosinophils
C. neutrophils
and monocytes
D. eosinophils and lymphocytes
2. The capillaries are the thickest blood vessels.
A. True
B. False
3. The fluid part of blood?
A. Lymph
B. Saliva
C. Mucus
D. Plasma
4. Plasma protein fibrinogen has an active role in?
A. Clotting of
blood
B. Protection
C. Lubrication
D. Nutrition
5. RBC produced in the?
A. Liver
B. Spline
C. Bone Merrow
D. Heart
6. Blood circulation was discovered by?
A. Robert Koch
B. Robert Hooke
C. William
Harvey
D. Karl Landsteiner
7. Which of the following do not take part in the extrinsic
pathways for the formation of prothrombinase?
A. tissue factor
B. prowar factor
C. stable factor
D. Ca ions
8. The total blood volume in an adult?
A. 3-4 liters
B. 5-6 liters
C. 6-8 liters
D. 7-9 liters
9. The pH value of Human blood?
A. 6.35-6.55
B. 7.25-7.35
C. 7.35-7.45
D. 7.45-7.55
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10. Blood is made up of how many components?
A. 2
B. 3
C. 4
D. 5
11. Protein-containing pigment of Hemoglobin?
A. Bile
B. Heme
C. Globulin
D. Albumin
12. Plasma proteins maintain the blood pH?
A. Globulin
B. Albumin
C. Gamma Globulin
D. Fibrinogen
13. Which of the following is involved in immune responses?
A. WBCs
B. RBCs
C. platelets
D. blood plasma
14. Biconcave discs shaped blood cells?
A. RBC
B. WBC
C. TLC
D. Platelets
15. Which is non-nucleated blood cell?
A. RBC
B. WBC
C. TLC
D. DLC
16. Respiratory pigments present in RBC?
A. Globulin
B. Albumin
C. Gamma Globulin
D. Hemoglobin
17. Red pigment present in RBC?
A. Globulin
B. Hemoglobin
C. Gamma Globulin
D. Albumin
18. Which of the following statement is NOT true?
A. hemostasis prevents hemorrhage
B. platelet plug
is very effective in preventing blood loss from large blood vessels
C. vitamin K is required for the synthesis of several clotting
factors
D. the clot formed is a gel-like substance
19. The normal blood cholesterol level?
A. 60-100 mg/100 ml
B. 120-200 mg/100 ml
C. 150-240 mg/100
ml
D. 200-280 mg/10 ml
20. Plasma protein globulins functions as?
A. Transportation
B. Antibodies
C. Maintain Electrolyte Balance
D. Balancing
21. Which of the following is effective in dissolving the clot
formed after complete repair of injury?
A. Hageman factor
B. plasminolysin
C. Christmas factor
D. tissue factor
22. Graveyard of RBC?
A. Liver
B. Kidney
C. Spleen
D. Bone Merrow
23. What is known as Christmas disease?
A. Hemophilia A
B. Hemophilia B
C. Bernard-Soulier syndrome
D. Factor VIII
24. Which of the following is the clotting factor of blood?
A. Proaccelerin
B. tissue factor
C. stable factor
D. none of the
above
25. A type of Anemia with sickle-shaped RBC?
A. hemolytic anemia
B. Aplastic anemia
C. Vitamin deficiency anemia
D. Sickle cell
anemia
26. Match the following-
A) Vascular spasm 1. Extend projection and
substances (2 correct)
B)Platelet adhesion liberates 2. Causes contraction in walls of blood vessel (3 correct)
C) Platelet release action 3. Sticking on the damaged part (1
correct)
D) Platelet accumulation
4. Gathering of all the platelets 94 correct)
27. Viscosity of Blood?
A. 3.5 to 4.4
B. 5.5 to 6.5
C. 4.5 to
5.5
D. 3.5 to 5.5
28. Blood bank in the body?
A. Bone Marrow
B. Liver
C. Kidney
D. Spleen
29. Which of the following options does not come under the
substances released by activated platelets?
A. serotonin
B. ADP
C. urea
D. Ca ions
30. This plasma protein is responsible for blood coagulation
A. Fibrinogen
B. Globulin
C. Serum amylase
D. Albumin
31. Life span of RBC?
A. 60 Days
B. 80 Days
C. 140 Days
D. 120 Days
32. Hemoglobin is a ___________
A. Reproductive pigment
B. Respiratory
pigment
C. Carbohydrate
D. Fat
33. Total count is measured by an instrument known as?
A. Sphygmomanometer
B. Haemocytometer
C. Haemoglobinometer
D. Barometer
34. What prevents the clotting of blood inside blood vessels?
A. Heparin
B. Serotonin
C. Fibrinogen
D. Fibrin
35. What do you mean by Hemostasis?
A. production of new blood cells
B. process by
which bleeding stops from damaged blood vessels
C. normal body condition
D. none of the above
36. Blood is stained with _________ stain.
A. Methylene blue
B. Safranin
C. Leishman stain
D. Carbol fuchsine
37. A decrease in RBC count is known as?
A. Erythremia
B. Polycythemia
C. Anemia
D. Leukemia
38. Which blood cells secrets antibodies?
A. Eosinophils
B. Monocytes
C. Lymphocytes
D. Neutrophils
39. Which substance along with thromboxane A2 helps activate other
platelets during platelet plug formation?
A. serotonin
B. ADP
C.ATP
D. lysosomes
40. What are antibodies?
Proteins, released by lymphocytes, that attach to specific
antigens
Lymphocytes that
attach to specific antigens
Pathogens that attack the host's immune system
41. An increase in RBC count is known as?
A. Erythremia
B. Polycythemia
C. Anemia
D. Leukemia
42. What is severe neutropenia?
A. An absolute
neutrophil count (ANC. of less than 500
B. An ANC of less than 1,000
C. An ANC of less than 50
D. An ANC of less than 25
43. Which of the following are the 3 steps of hemostasis?
A. vascular spasm, platelet adhesion, blood clotting
B. vascular
spasm, platelet plug formation, blood clotting
C. vascular spasm, platelet aggregation, blood clotting
d. vascular spasm, platelet release, blood clotting
44. Red cell count is carried out by _________
A. Electrogram
B. Sphygmomanometer
C. Haemoglobinometer
D. Haemocytometer
45. A high concentration of bilirubin in the blood causes?
A. Liver cirrhosis
B. Jaundice
C. Pancreatitis
D. Cholelithiasis
46. Antibodies producing WBC?
A. Neutrophils
B. Basophils
C. Monocyte
D. Lymphocytes
47. Globulins of the blood plasma are responsible for
A. defense mechanisms
B. blood clotting
C. oxygen transport
D. osmotic balance
48. Lymph differs from blood in having
A. no plasma
B. more RBCs and less WBCs
C. more WBCs and
no RBCs
D. plasma without proteins
49. Why do large multicellular organisms need transport systems
while simple unicellular organisms do not?
Large organisms
have a much smaller surface area to volume ratio compared to smaller ones
Diffusion does not work in large multicellular organisms
Unicellular organisms have a much smaller surface area to volume
ratio than multicellular organisms
50. Life span of WBC?
A. 7-11 days
B. 5-9 days
C. 10-15 days
D. 15-25 days
51. Absence of which clotting factor leads to Hemophilia-A?
A. Factor VII
B. Factor VIII
C. Factor IX
D. Factor X
52. Which of the following is correct?
A. Serum contains blood and fibrinogen
B. Plasma is blood without lymphocytes
C. Blood
comprises plasma, RBC, WBC, and platelets
D. Lymph is plasma with RBC and WBC
53. Which protein is produced by the liver?
A. albumin
B. globulin
C. fibrinogen
D. All of the
above
54. There are five types of blood cells.
A. True
B. False
55. Which leucocytes release heparin and histamine in blood?
A. Neutrophil
B. Basophil
C. Eosinophil
D. Monocytes
56. Blood cell performs an important role in blood clotting?
A. RBC
B. WBC Multiple choice questions on Blood
C. Lymphocytes
D. Thrombocytes
(Platelets)
57. A blood clot in vessels is called?
A. Clot
B. Thrombus
C. Embolus
D. Aneurysm
58. WBCs which release heparin and histamine
A. Basophils
B. Neutrophils
C. Monocytes
D. Eosinophils
59. Graveyard of RBC is ________
A. Spleen
B. Liver
C. Kidney
D. Thymus
60. Anticoagulant present in Blood?
A. Enoxaparin
B. Heparin
C. Warfarin
D. Fondaparinux (Arixtra)
61. What are neutrophils?
A. Immature red blood cells
B. A type of
white blood cell
C. A type of platelet
D. A type of bacteria
62. What is the average life span of RBCs?
A. 8-10 days
B. 4 months
C. 6 years
D. 2 years
63. How is carbon dioxide transported in the blood?
In the plasma
In the red blood cells
In the white blood cells
64. A hereditary bleeding disease?
A. Coagulopathy
B. Haemophilia
C. Purpura
D. Thrombocytopenia
65. Bleeder’s disease?
A. Menorrhagia
B. Hematoma
C.
Haemophilia
D. Coagulopathy
66. Match the following functions with its cells-
A. basophils 1. Phagocytosis
(4 correct)
B. eosinophils 2. Help in antigen-antibody reactions (3
correct)
C. lymphocytes 3. Combat the effect of histamine (2
correct)
D. monocytes 4. Liberate serotonin (1 correct)
67. Instrument used to measure hemoglobin?
A. Sphygmomanometer
B. Hemocytometer
C.
Hemoglobinometer
D. Barometer
68. Who demonstrated blood groups?
A. Robert Koch
B. Robert Hooke
C. William Harvey
D. Karl
Landsteiner
69. Who demonstrated the Rh factor?
A. Robert Koch
B. Robert Hook
C. William Harvey
D. Karl
Landsteiner
70. What is the main function of RBCs?
A. immune surveillance
B. produces histamines
C. platelet plug formation
D. none of the
above
71. Which is a symptom of not having enough red blood cells or
hemoglobin (a condition called anemia)?
A. Itching
B. Nausea
C. Fever
D. Fatigue
72. Blood group which is called Universal donor?
A. A
B. AB
C. B
D. O
73. The most common blood type is AB negative.
A. True
B. False
74. What is the main function of neutrophils?
A. liberate heparin
B. it has the opposite effect to histamine
C. destroys
bacteria with lymphocytes
D. blood clotting
75. Blood group which is called Universal recipient?
A. A
B. AB
C. B
D. O
76. What is the diameter of basophils?
A. 10-12micrometer
B. 8-10
micrometer
C. 12-20micrometer
D. 6-9 micrometer
77. How are human red blood cells adapted to their function?
They contain a lot of carboxyhemoglobin
They have a biconvex shape
They have no
nucleus
78. Blood group is most common among the Asians?
A. A
B. AB
C. B
D. O
79. Process of formation of blood corpuscles is called
_____________
A. Haemolysis
B. Haemozoin
C. Haemopoesis
D. Haemoter
80. What is the shape of the nucleus in monocytes?
A. kidney-shaped
B. sausage-shaped
C. triangular shape
D. round shape
81. The blood corpuscles are of _________ kinds.
A. 5
B. 4
C. 2
D. 3
82. What type of cell are phagocytes?
Lymphocytes
Erythrocytes
White blood cells
83. What is hematocrit?
A. A sometimes fatal blood disease
B. The portion of
red blood cells compared with total blood volume
C. A blood pressure measuring device
D. A medicine that helps stop bleeding
84. The disease-resistant blood cell?
A. RBC
B. WBC
C. Platelet
D. Plasma
85. Find the correct statement for WBCs
A. can squeeze
through blood capillaries
B. produced only in the thymus
C. deficiency leads to cancer
D. do not contain a nucleus
86. Smallest WBC?
A. Lymphocyte
B. Eosinophil
C. Monocyte
D. Neutrophils
87. Which WBC is known as soldiers of the body?
A. Neutrophils
B. Basophils
C. Monocyte
D. Lymphocytes
88. Serum differs from blood as it lacks
A. antibodies
B. clotting
factors
C. albumins
D. globulins
89. Which of the following statement is NOT true?
A. RBCs lack nucleus
B. All the WBCs
contain lobes
C. platelets have a life span of 5-9 days
D. 90% of blood plasma is water
90. Largest WBC? Blood MCQs
A. Lymphocyte
B. Eosinophil
C. Monocyte
D. Neutrophils
91. Which of the following is false about spleen ?
A. Decreases in size with age
B. Lies entirely within the rib cage
C. Maximum cephalocaudal diameter is 13 cm by USG
D. Maximum width
of 14 cm by radionuclide scan
92.
During blood coagulation, thromboplastin is released by
A.
RBC
B.
blood plasma
C.
leucocytes
D. clumped platelets and damaged
tissues
93. What is the role of the phagocytes in the immune system?
To eat harmful pathogens
To ingest and
destroy harmful pathogens
To release antibodies against harmful pathogens
94.
A rise in blood cholesterol may lead to the deposition of cholesterol on the
walls of blood vessels. This causes the arteries to lose their elasticity and
get stiffened. This is called ___________
A.
Hypertension
B.
Hypotension
C.
Arteriosclerosis
D. Systolic pressure
95.
The ratio of WBC and RBC is
A.
1:60
B. 1:600
C.
1:6000
D.
1:60000
96. Iron-containing pigment of Hemoglobin?
A. Bile
B. Heme
C. Globulin
D. Albumin
97.
The matrix of blood is known as
A. Plasma
B.
Serum
C.
RBC and WBC
D.
WBC and platelets
98. Which of these is a function of the blood plasma?
To transport oxygen
To transport heat
energy
To produce platelets
99. The normal
level of Hb per 100 ml of blood in women is
A. 149
B. 18 g
C. 20 g
D. 10 g
100. What is the purpose of blood clotting after a skin wound?
To stop the loss of blood and trap microorganisms in the
capillaries
To stop the loss
of blood and prevent the entry of microorganisms into the body
To use up excess platelets in the blood
101. Which blood cells and blood elements are included in a CBC
test?
A. Red blood cells (erythrocytes)
B. White blood cells
C. Platelets
D. All of the
above
102. What do platelets do?
A. Carry oxygen from the lungs
B. Carry waste products from the cells
C. Fight infection
D. Help stop
bleeding by initiating clots
103. Blood
circulation was first explained by
A.
Jenner
B. William Harvey
C.
Mendel
D. Pasteur
104. White blood cells outnumber red blood cells in the human
body.
A. True
B. False
105. The normal blood
pressure of a healthy person is
A.
120/100
B. 110/90
C. 120/80
D.
120/90
106. What do white blood cells do?
A. Carry oxygen from the lungs
B. Carry waste products from the cells
C. Fight
infection
D. Help stop bleeding by forming clots
E. All of the above
107. What is the
name of the iron -containing protein that gives red blood vessels their colour?
A. Hemocyanin
B. Pyrite
C. Hemoglobin
D. Myoglobin
108. In the human body, blood flows because of pressure
differences.
A. True
B. False
109. Which of
following in the body's largest blood vessel?
A. Aorta
B.
Capillaries
C.
Pulmonary vein
D. Heart
110. What do red blood cells do?
A. Carry oxygen from the lungs
B. Carry carbon dioxide, a waste product, from the cells
C. Fight infection
D. A and B
111. Which of the
following are not components of blood?
A.
Plasma
B. Blood
cells and platelets
C. Gases
and other dissolved substances
D. All of the above
112. A sphygmomanometer measures blood cholesterol levels.
A. True
B. False
113.
The_____ produces red blood cells, which transport_____ and some_____
A.
Liver, oxygen, mineral ions
B.
Liver, oxygen; carbon dioxide
C.
Bone marrow, oxygen; hormones
D. Bone marrow, oxygen, carbon
dioxide
114. Vaccination results in the manufacture of memory cells. What
do these do?
They enable
future antibody production against the pathogen to be slower but in greater
quantity
They enable future antibody production against the pathogen to be
faster but in lower quantity
They enable future antibody production against the pathogen to be
faster and in greater quantity
115.
The life span of WBC is approximately
A.
Less than 10 days
B. Between 20-30 days
C.
Between 2-3 months
D.
More than three months
116. Blood is five times more viscous than distilled water.
A. True
B. False
117.
The percentage of formed elements in the blood is
A. 45%
B.
50%
C.
55%
D.
65%
118. What is the name of the condition that results when a person
does not have enough platelets?
A. Thrombocytopenia
B. Thromboangiitis
C. Thrombocythemia
D. Thrombopathia
119. Which of the following blood cells play an important role in
blood clotting?
A. Thrombocytes
B. Neutrophils
C. Leucocytes
D. Erythrocytes
120. What can vaccination involve?
Injecting a dead form of the disease to stimulate immunity
Injecting an inactive form of the disease to stimulate immunity
Injecting an
inactive form of the pathogen to stimulate immunity
121.
The life span of RBC
A.100
days
B.110
days
C.120 days
D.130
days
122. DNA is not present in
A. an enucleated ovum
B. hair root
C. a mature spermatozoa
D. mature RBCs
123. Why do vascular spasm takes place?
A. due to damage in smooth muscle
B. due to release of substances by activated platelets
c. due to the reflex initiated by pain receptors
D. all of the
above