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    Question

    Haemoglobin is used to transport _______ in

    humans.
    A Oxygen Correct Answer Incorrect Answer
    B Carbon Dioxide Correct Answer Incorrect Answer
    C Both are correct Correct Answer Incorrect Answer
    D Both are incorrect Correct Answer Incorrect Answer

    Solution

    In human beings, the respiratory pigment is haemoglobin which has a very high affinity for oxygen. This pigment is present in the red blood corpuscles. Carbon dioxide is more soluble in water than oxygen is and hence is mostly transported in the dissolved form in our blood. Hence, option A is correct.

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