Practice test

Circulatory system and blood - Test Set 2

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    SSC CPO 2017
    Normally how many times the human heart beats in a minute?
    1. 82
    2. 75
    3. 72
    4. 85
    View explanation

    Sign In to See Explanations. Sign Up Here

  2. Question 2

    SSC CPO 2017
    Which of the following is a cold-blooded animal?
    1. Ape
    2. Mouse
    3. Snake
    4. Wolf
    View explanation

    Sign In to See Explanations. Sign Up Here

  3. Question 3

    SSC CPO 2017
    Which of the following enzyme is essential for clotting of blood?
    1. Amylase
    2. Thrombin
    3. Pepsin
    4. Renin
    View explanation

    Sign In to See Explanations. Sign Up Here

  4. Question 4

    SSC CPO 2017
    Karl Landsteiner is known for the discovery of which one of the following?
    1. Cresco graph
    2. Radioactivity
    3. Blood group
    4. X-rays
    View explanation

    Sign In to See Explanations. Sign Up Here

  5. Question 5

    Which of the following is necessary for Blood clotting in humans?
    1. Vitamin A
    2. Vitamin K
    3. Vitamin C
    4. Vitamin E
    View explanation

    Sign In to See Explanations. Sign Up Here

  6. Question 6

    The blood groups were discovered by—
    1. Altmann
    2. Landsteiner
    3. Losch
    4. Ronald Ross
    View explanation

    Sign In to See Explanations. Sign Up Here

  7. Question 7

    What happens to a person who receives the wrong type of blood?
    1. All the arteries constrict
    2. All the arteries dilate
    3. The RBCs agglutinate
    4. The spleen and lymph nodes deteriorate
    View explanation

    Sign In to See Explanations. Sign Up Here

  8. Question 8

    The term 'RH factor' refers to—
    1. Rhesus factor
    2. Rheumatoid factor
    3. Renal factor
    4. Rhombic factor
    View explanation

    Sign In to See Explanations. Sign Up Here

  9. Question 9

    SSC CGL 2008
    The normal RBC count in adult male is—
    1. 5.5 million
    2. 5.0 million
    3. 4.5 million
    4. 4.0 million
    View explanation

    Sign In to See Explanations. Sign Up Here

  10. Question 10

    Which is the anti-coagulant substance in blood?
    1. Fibrinogen
    2. Heparin
    3. Thrombin
    4. Globin
    View explanation

    Sign In to See Explanations. Sign Up Here

  11. Question 11

    The red colour of human blood is due to—
    1. Haemoglobin
    2. Myoglobin
    3. Immunoglobulin
    4. None of the above
    View explanation

    Sign In to See Explanations. Sign Up Here

  12. Question 12

    The fluid part of blood devoid of corpuscles is called—
    1. Tissue fluid
    2. Plasma
    3. Serum
    4. Lymph
    View explanation

    Sign In to See Explanations. Sign Up Here

  13. Question 13

    SSC CGL 2004
    At very high altitude, the red blood corpuscles in the human body will—
    1. Increase in size
    2. Decrease in number
    3. Decrease in size
    4. Increase in number
    View explanation

    Sign In to See Explanations. Sign Up Here

  14. Question 14

    SSC CGL 2003
    What are the blood corpuscles that help to build up resistance against diseases?
    1. Leucocytes
    2. Monocytes
    3. Neutrophils
    4. Lymphocytes
    View explanation

    Sign In to See Explanations. Sign Up Here

  15. Question 15

    SSC Matric Level 2002
    The red blood cells are produced by the—
    1. Liver
    2. Hormones
    3. Bone marrow
    4. Heart
    View explanation

    Sign In to See Explanations. Sign Up Here

  16. Question 16

    SSC Matric Level 2002
    Haemoglobin is an important constituent of—
    1. Red Blood Cells
    2. White Blood Cells
    3. Platelets
    4. Plasma
    View explanation

    Sign In to See Explanations. Sign Up Here

  17. Question 17

    Universal donors are people with the blood group—
    1. A
    2. B
    3. O
    4. AB
    View explanation

    Sign In to See Explanations. Sign Up Here

  18. Question 18

    SSC Matric Level 2002
    Metal present in blood is—
    1. Calcium
    2. Zinc
    3. Sodium
    4. Iron
    View explanation

    Sign In to See Explanations. Sign Up Here

  19. Question 19

    Which of the following is a primary function of haemoglobin?
    1. Utilization of energy
    2. Prevention of anaemia
    3. Destruction of bacteria
    4. To transport oxygen
    View explanation

    Sign In to See Explanations. Sign Up Here

  20. Question 20

    Oxygenated blood flows out of the heart through the—
    1. Aorta
    2. Pulmonary artery
    3. Vena cava
    4. Atrium
    View explanation

    Sign In to See Explanations. Sign Up Here