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Quiz 6
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Q.1
Polycythemia is characterised by ... ...
0%
a) Decrease in O2 content
0%
b) Increase in RBC content
0%
c) Decrease in RBC content
0%
d) Increase in WBC content
Explanation
Polycythemia is a chronic disorder characterized by increased red blood cell mass. The resultant hyperviscosity of the blood predisposes such patients to thrombosis. Answer : (b)
Q.2
Maximum surface area of circulatory system is of ... ... [ CPMT 2007 ]
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a) Heart
0%
b) Arterioles
0%
c) Veins
0%
d) Capillaries
Explanation
Answer : (d)
Q.3
During fever pyrogens are released by ... ... [ WB 2007 ]
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a) Virus
0%
b) Bacteria
0%
c) RBC
0%
d) WBC
Explanation
Pyrogen is a chemical circulating in the blood that causes a rise in body temperature. A substance, typically produced by a bacterium, which produces fever when introduced or released into the blood. Answer : (b)
Q.4
hypertension is not caused by ... ... [ MHTCET 2009]
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a) Anaemia
0%
b) Atherosclerosis
0%
c) Obesity
0%
d) Arteriosclerosis
Explanation
High blood pressure (HBP), also called hypertension, Anaemia : a condition in which there is a deficiency of red cells or of haemoglobin in the blood, resulting in pallor and wearinessAtherosclerosis a disease of the arteries characterized by the deposition of fatty material on their inner walls causes high blood pressure Obesity Weight gain was associated with increased risk of developing hypertension. Arteriosclerosis the thickening and hardening of the walls of the arteries, occurring typically in old age. Answer : (a)
Q.5
Blood passes from left ventricle to right atrium. It is ... ... [ MHTCET 2008 ]
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a) Pulmonary circulation
0%
b) Systemic circulation
0%
c) Coronary circulation
0%
d) Arterovenous circulation
Explanation
Systemic circulation is the part of the cardiovascular system which carries oxygenated blood away from the heart left ventricle to the body, and returns deoxygenated blood back to the heart right ventricle. Answer : (b)
Q.6
Which of the following is correct internal structure of heart ... [ Guj. CET 2010 ]
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a) Bicuspid mitral valve separates left atrium from right ventricle
0%
b) Tricuspid mitral valve separates right atrium from right ventricle
0%
c) Bicuspid mitral valve separates left atrium from left ventricle
0%
d) Tricuspid mitral valve separates left atrium from left ventricle
Explanation
Answer : (c)
Q.7
A child has blood group B. Mother has blood group A. The blood group of the father would be .. .. [ MPPMT 1990 ]
0%
a) O
0%
b) O or A
0%
c) B or AB
0%
d) A
Explanation
Mother blood type
Farther Blood type A
Farther Blood type B
 Farther Blood type AB
Farther Blood type O
A
A or O
A , B, AB or O;
;A, B or AB
A or O
B
A, B, AB or O
B or O
A, B, or AB
B or O
AB
A, B Or AB
A, B Or AB
A, B Or AB
A, Or B;
O
A or O
B or O
A or B
O
Answer : (c)
Q.8
The other term for heart attack is ... ... [ BHU 2012 ]
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a) Coronary thrombosis
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b) Myocardial infarction
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c) Ischaemia
0%
d) Cardiac arrest
Explanation
Myocardial infarction is another name for a heart attack. Answer : (b)
Q.9
Cold blooded animal with a single circulation is ... ... [ MHTCET 2007 ]
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a) Mammal
0%
b) Amphibian
0%
c) Reptile
0%
d) Fish
Explanation
Answer : (d)
Q.10
Vitamin required for the formation of prothrombin is ... ... [ EAMCET 1996 ]
0%
a) K
0%
b) B12
0%
c) E
0%
d) C
Explanation
Vitamin K is a group of structurally similar, fat-soluble vitamins the human body requires for complete synthesis of certain proteins that are prerequisites for blood coagulation Answer : (a)
Q.11
Coronary heart disease is due to ... ... [ KCET 2007]
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a) Weakening of heart valves
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b) Insufficient blood supply to heart muscles
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c) Streptococci bacteria
0%
d) Inflammation of pericardium
Explanation
In coronary heart disease, or CHD, in which plaque forms within the arteries of the heart. The plaque reduces the oxygen in the blood and causes additional heart problems, such as a heart attack or blood clot Answer : (b)
Q.12
Blood group were discovered by .... ... [ CPMT 2002 ]
0%
a) Harvey
0%
b) Landsteiner
0%
c) Miller
0%
d) Lull
Explanation
The A,B,O blood group system is widely credited to have been discovered by the Austrian scientist Karl Landsteiner, who identified the O, A, and B blood types in 1900 Answer : (b)
Q.13
Glucose 6-phosphate dehydrogenase deficiency is associated with haemolysis of ... ... [ CBSE 2005]
0%
a) Leucocytes
0%
b) Lymphocytes
0%
c) Platelets
0%
d) RBCs
Explanation
Glucose-6-phosphate dehydrogenase deficiency, also known as favism, is an X-linked recessive inborn error of metabolism that predisposes to hemolysis. Abnormally low levels of glucose-6-phosphate dehydrogenase, an enzyme involved in the pentose phosphate pathway that is especially important in the red blood cell. Answer : (d)
Q.14
Which pump oxygen-depleted blood ... ... [ MPPMT 1998 ]
0%
a) Pulmonary arteries
0%
b) Right ventricle
0%
c) Right atrium
0%
d) Pulmonary veins
Explanation
The right ventricle is the chamber within the heart that is responsible for pumping oxygen-depleted blood to the lungs. Answer : (b)
Q.15
Blood vessel which brings oxygenated blood to left auricle is ... ... [ AFMC 2000 ]
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a) Precaval vein
0%
b) Postcaval vein
0%
c) Pulmonary vein
0%
d) Pulmonary artery
Explanation
Answer : (c)
Q.16
Open vascular system occurs in .... ... [ CBSE 2006 ]
0%
a) Fish
0%
b) Prawn/ Periplneta
0%
c) Snake
0%
d) Earthworm
Explanation
Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood. in crustaceans, insects, mollusks and other invertebrates Answer : (b)
Q.17
largest corpuscles of mammalian blood are ... ... [ AFMC 2002 ]
0%
a) Lymphocytes
0%
b) Basophils
0%
c) Erythrocytes
0%
d) Monocytes
Explanation
Monocytes are a type of white blood cell, or leukocyte. They are the largest type of leukocyte and can differentiate into macrophages and myeloid lineage dendritic cells. Answer : (d)
Q.18
Pulmonary artery carries ... ... [ AFMC 2003 ]
0%
a) pure blood from heart to lungs
0%
b) pure blood from heart to stomach
0%
c) impure blood from heart to lungs
0%
d) pure blood from lungs to heart
Explanation
Answer : (c)
Q.19
mature erythrocyte cannot utilize glucose because they lack ... ... [ DPMT2010 ]
0%
a) Golgi complexes
0%
b) Mitochondria
0%
c) Enzymes
0%
d) Nucleus
Explanation
Mitochondria convert glucose to ATP Answer : (b)
Q.20
han one correct answer Q173) Blood corpuscles containing both A and B antigens are mixed with another blood serum. The blood corpuscles agglutinated. Blood serum belongs to blood group.. .... [ KCET 2010 ]
0%
a) A
0%
b) B
0%
c) AB
0%
d) O
Explanation
Group AB contain both A and B antigens is now donor . Is mixed with other blood serum which is acceptor and blood corpuscles agglutinated. Which is either A, B or O Answer : (a, b,d)
Q.21
Number of major vessels pouring blood in right atrium is ... .. [ MHTCET 2011 ]
0%
a) 1
0%
b) 2
0%
c) 3
0%
d) 4
Explanation
Deoxygenated blood enters the right atrium through three major veins: the superior and inferior vena cava and the coronary sinus. Answer : (c)
Q.22
Universal blood donor group is ....... [JIPMER 1999 ]
0%
a) A
0%
b) B
0%
c) AB
0%
d) O
Explanation
Answer : (d)
Q.23
Angina pectoris is a major symptom of ... ....
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a) Myocardial infarction
0%
b) Cyanosis
0%
c) High blood pressure
0%
d) Low blood pressure
Explanation
Angina pectoris: is the result of myocardial ischemia caused by an imbalance between myocardial blood supply and oxygen demand. Myocardial ischemia: also called cardiac ischemia, can damage your heart muscle, reducing its ability to pump efficiently. A sudden, severe blockage of a coronary artery can lead to a heart attack. Myocardial infarction :commonly known as a heart attack Answer : (a)
Q.24
Close circulatory system occurs in ... ... [ CBSE 1994 ]
0%
a) Cockroach
0%
b) Tadpole/ Fish
0%
c) Mosquito
0%
d) House fly
Explanation
Arthropoda have open circulatory system Answer : (b)
Q.25
Ventricular diastole takes place due to activity of ... ... [ AIIMS 2012 ]
0%
a) Tissue
0%
b) Organ
0%
c) Organ system <
0%
d) Cell organelle
Explanation
Ventricular diastole is a period of relaxation and repolarization of the ventricular muscle. Muscle is a soft tissue Answer : (a)
Q.26
Assertion: SA node produces excitatory impulses in heart Reason: SA node is self excitatory
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a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
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b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
SA node produce excitatory impulse for the contraction and relaxation of the heart muscle. Not because SA node is self-excitatory Thus Assertion and Reason both are true but reason is not correct explanation of Assertion Answer : (b)
Q.27
What cannot be the blood group of the parents of a baby having blood group A? ... .. [ MPPMT 1990 ]
0%
a) O and O
0%
b) O and A
0%
c) A and O
0%
d) A and A
Explanation
Mother blood type
Farther Blood type A
Farther Blood type B
 Farther Blood type AB
Farther Blood type O
A
A or O
A , B, AB or O;
;A, B or AB
A or O
B
A, B, AB or O
B or O
A, B, or AB
B or O
AB
A, B Or AB
A, B Or AB
A, B Or AB
A, Or B;
O
A or O
B or O
A or B
O
Answer : (a)
Q.28
In blood ... ... [ EAMCET 1996 ]
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a) WBCs are more than RBCs
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b) RBCs are more than WBCs
0%
c) RBCs are less than platelets
0%
d) Platelets are less than WBCs
Explanation
Red Blood Cells
White Blood Cells
Main Function
Transport of oxygen and carbon dioxide.
Provide protection against foreign organisms and matter
Types
Only one type
Granulocytes, Monocytes and Lymphocytes
Volume
Accounts for about 40-45 percent of blood’s volume
Accounts for about 1 percent of blood’s volume
Colour
Red due to the presence of hemoglobin
They are colorless
Life Span
120 days
Short life span of 5-21 days
Formation
In the embryonic phase, they are formed in the live and spleen. However, after birth, they are formed in red bone marrow
They are formed in red bone marrow, lymph nodes, spleen, etc.
Movement
Primarily between the cardiovascular system
Between the cardiovascular and lymphatic system. Many leukocytes gets matured in the lymph nodes. They escape from the blood vessels and travel towards the site of infection.
Answer : (b)
Q.29
Lub sound produced by heart is caused by ... ... [ AMU 2012 ]
0%
a) Ventricular systole
0%
b) Ventricular diastole
0%
c) Atrial diastole
0%
d) Atrial systole
Explanation
Ventricular systole is the contraction of the heart ventricles. It begins with the first heart sound (S1). The closure of the AV valves is heard as lub, the first heart sound (S1). The closure of the SL valves is heard as dub, the second heart sound (S2). Answer : (a)
Q.30
Which of the following is not a lymphoid organ ... ... [ AFMC 2012 ]
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a) Spleen
0%
b) Thymus
0%
c) Kidney
0%
d) Lymph nodes
Explanation
Lymphoid organs: The spleen, lymph nodes, thymus, Peyer patches, and tonsils, where more than 98% of T lymphocytes are found. Answer : (c)
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