An Enzyme Works Well at as a Catalyst at a PH

question 74

Multiple Choice

An enzyme works well at as a catalyst at a pH of 7.2.It is found that catalytic activity is significantly less at a pH of 8.4.Which could likely cause the decrease in activity?

• A)The protein has been degraded into its amino acids at pH 8.4.
• B)The protein has changed shape due to a change in charge.
• C)The protonation state of amino acids involved in the catalytic mechanism has changed.
• D)B and C above.
• E)All of the above.

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