MCAT Question of the Day
    •

    Q:

    		 In humans, proline can be synthesized from glutamate which in turn can be derived from α-ketoglutarate. It can therefore be concluded that:
    		 

    A

    		 proline is necessary for the Krebs cycle.

    B

    		 glutamate and proline play similar roles in proteins.

    C

    		 proline production is an irreversible reaction in the body.

    D

    		 proline is not an essential amino acid in humans.



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