MCAT Question of the Day
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    Q:

    		 What is the main biological reason for why hemoglobin is the main oxygen transport protein in the blood as opposed to myoglobin?
    		 

    A

    		 Hemoglobin binds oxygen tighter than myoglobin, making it a more successful protein for oxygen transport.

    B

    		 Myoglobin acts as an allosteric enzyme, making it less preferable for oxygen transport.

    C

    		 Myoglobin binds oxygen much tighter than hemoglobin, increasing efficiency of transport when hemoglobin is the oxygen transport protein.

    D

    		 Myoglobin is structurally incapable of successful travel through the blood stream.



    Circulatory System |
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