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General Knowledge :: Biology

  1. When a foreign body inter into blood circulatory system the reaction is started by

  2. A.

     RBC

    B.

     WBC

    C.

     Platletes

    D.

     Cytoplasm

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  3. How many chambers does a human heart have?

  4. A.

     2

    B.

     4

    C.

     6

    D.

     7

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  5. The muscle which separate the right side and left side of heart is known as

  6. A.

     Keratin

    B.

     Maxilla

    C.

     Septum

    D.

     Tubercules

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  7. What is the pH value range of human blood?

  8. A.

     7.1-7.15

    B.

     7.45-7.55

    C.

     7.22-7.28

    D.

     7.35-7.45

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  9. The main function of hemoglobin is

  10. A.

     Carries Oxygen

    B.

     Control Blood Pressure

    C.

     Produce hormones

    D.

     None of the above

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  11. The colour of Hemoglobin is

  12. A.

     Red

    B.

     Yellow

    C.

     White

    D.

     Colorless

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  13. The elastic vessels which transport blood to the heart is known as

  14. A.

     Arteries

    B.

     Veins

    C.

     Capillaries

    D.

     None of the above

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  15. The elastic vessels which transport blood from the heart is known as

  16. A.

     Arteries

    B.

     Sinusoids

    C.

     Capillaries

    D.

     None of the above

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  17. White blood cell act

  18. A.

     As a defence against infection

    B.

     As a source of energy

    C.

     For clotting blood

    D.

     As a medium for oxygen transport from lung to tissues

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  19. The top chambers of human heart are called

  20. A.

     Aorta

    B.

     Atrium

    C.

     Septum

    D.

     Ventricle

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