MCAT Question of the Day
    •

    Q:

    The graph above depicts the rate of transport of two compounds across a membrane. Which of the following best predicts the identity of each molecule?
    		 

    A

    		 Molecule A is glycine (NH2CH2COOH); Molecule B is testosterone

    B

    		 Molecule A is O2; Molecule B is propanol

    C

    		 Molecule A is CO2; Molecule B is acetate (CH3COO-)

    D

    		 Molecule A is a bile salt; Molecule B is chloride



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