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Free download in PDF Circulatory System Multiple Choice Questions(mcqs) & Answers for competitive exams. These Circulatory System Objective Questions with Answers are important for competitive exams of Biology, Life Science, Zoology and other Board Exams etc. These short solved questions or quizzes are provided by Gkseries.
(1)
RBCs do not occur in
[A]
frog
[B]
cow
[C]
camel
[D]
cockroach
(2)
Child death may occur in the marriage of
[A]
Rh+ man and Rh’ woman
[B]
Rh man and Rli woman
[C]
Rh man and Rh woman
[D]
Rh man and Rh’ woman
Answer: Rh man and Rli woman
(3)
Sickle cell disease is characterised by
[A]
Leukemia
[B]
Polycythemia
[C]
Mental Retardation
[D]
Hemolytic Anaemia
Answer: Hemolytic Anaemia
(4)
Presence of RBC in urine is
[A]
Alkaptonuria
[B]
Urothiasis
[C]
Hematuria
[D]
Proteinuria
(5)
Haemophilia is
[A]
Royal Disease
[B]
Faulty Blood Clotting
[C]
Both A And B
[D]
Mosquito Having Haemocoel
(6)
Which one engulfs pathogens rapidly?
[A]
Acidophils
[B]
Monocytes
[C]
Basophils
[D]
Neutrophils
(7)
A person with blood group A requires blood. The blood group which can be given is
[A]
A and B
[B]
A and AB
[C]
A and O
[D]
A, B, AB and O
(8)
A vein possesses a large lumen because
[A]
Tunica Media And Tunica Externa Form A Single Coat
[B]
Tunica Interna And Tunica Media Form A Single Coat
[C]
Tunica Interna, Tunica Nicuiu And Tunica Externa Are Thin
[D]
Tunica Media Is A Thin Coat
Answer: Tunica Media Is A Thin Coat
(9)
Wall of blood capillary is formed of
[A]
Haemocytes
[B]
Parietal Cells
[C]
Endothelial Cells
[D]
Oxyntic Cells
Answer: Endothelial Cells
(10)
Carbonic anhydrase occurs in
[A]
lymphocytes
[B]
blood plasma
[C]
RBC
[D]
leucocytes
(11)
Cells formed in bone marrow include
[A]
RBC
[B]
RBC and leucocytes
[C]
leucocytes
[D]
lymphocytes
Answer: RBC and leucocytes
(12)
Cells involved in immune mechanism are
[A]
Erythrocytes
[B]
Lymphocytes
[C]
Eosinophils
[D]
Thrombocytes
(13)
The pace setter in the heart is called
[A]
Sino-Atrial Node (SAN)
[B]
Atrio-Ventricular Node (AVN)
[C]
Purkinje Fibres
[D]
Papillary Muscle
Answer: Atrio-Ventricular Node (AVN)
(14)
HIV that causes AIDS first starts destroying
[A]
Helper T-Lymphocytes
[B]
B-Lymphocytes
[C]
Leucocytes
[D]
All Of The Above
Answer: Helper T-Lymphocytes
(15)
Antibodies in our body are complex
[A]
Glycoproteins
[B]
Lipoproteins
[C]
Steroids
[D]
Prostaglandins
(16)
In veins, valves are present to check backward flow of blood flowing at
[A]
Atmospheric Pressure
[B]
High Pressure
[C]
Low Pressure
[D]
All Of These
(17)
The lymph serves to
[A]
Return The Interstitial Fluid To The Blood
[B]
Return The Wbcs And Rbcs To The Lymph Nodes
[C]
Transport Co2 To The Lungs
[D]
All Of The Above
Answer: Return The Interstitial Fluid To The Blood
(18)
The correct route through which pulse-making impulse travels in the heart is
[A]
SA node —> Purkinje fibres —> bundle of His —> AV node —> heart muscles
[B]
SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
[C]
AV node —> bundle of His —> SA node —> Purkinje fibres —> heart muscles
[D]
AV node —> SA node —> Purkinje fibres —> bundle of His —> heart muscles
Answer: SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
(19)
The interferons are
[A]
Antigen Proteins
[B]
Antiviral Proteins
[C]
Antibiotic Proteins
[D]
All Of These
Answer: Antiviral Proteins
(20)
a person shows production of interferons in his body, the chances are that he has got an infection of
[A]
Tetanus
[B]
Malaria
[C]
Typhoid
[D]
Measles
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