| MadSci Network: Biochemistry |
Fay,
The only thing I can come up with in answer to your question is that
copper could affect the concentration of hydrogen peroxide in solution.
Catalase uses hydrogen peroxide as a substrate. Hydrogen peroxide is
decomposed in the presence of metal ions such as copper. Thus, the
catalytic rate could be reduced by the effect of copper scavenging the
enzyme's substrate.
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