MCAT Question of the Day
    •

    Q:

    		 In animals, enzymes and hormones are similar in that both substances
    		 

    A

    		 do not contain the element nitrogen

    B

    		 function only within cells

    C

    		 are products of cell synthesis

    D

    		 must be ingested



    Enzyme Structure and Function | Eukaryotic Cells |
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