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  1. Haemoglobin is an important component of

    2. A.

     RBC
    B.

     WBC
    C.

     Platletes
    D.

     Cytoplasm

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    Answer : Option A

    Explanation :

    Hemoglobin is the most important component of red blood cells. It is composed of a protein called heme, which binds oxygen. In the lungs, oxygen is exchanged for carbon dioxide.

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