MCAT Question of the Day
    •

    Q:

    		 X-ray crystallography predictions of enzymes show evidence that the enzyme active site could move several nanometers when the substrate is brought in close proximity. This observation supports which hypothesis and why?

    		 

    A

    		 Lock and key model, enzyme active sites are rigid

    B

    		 Lock and key model, enzyme active sites are dynamic

    C

    		 Induced fit model, enzyme active sites are rigid

    D

    		 Induced fit model, enzyme active sites are dynamic



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