Enzyme Reaction Rates -enzymes are also known as biological catalysts

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Presentation transcript:

Enzyme Reaction Rates -enzymes are also known as biological catalysts -a catalyst is a substance that speeds up chemical reactions

Enzyme Reaction Rates -Several factors affect how fast enzymes work: -These include pH, temperature, and concentration pH -Enzymes work within a limited pH range

Enzyme Reaction Rates Temperature -Increasing temperature can increase enzyme reactions rates up to a point -Anything beyond the optimal temperature will slow enzyme reaction rates even to the point of denaturing (or destroying) the enzyme

Enzyme Reaction Rates Concentration -Increasing the concentration increases reaction rates up to a certain point and then it will make no difference in terms of how much more is added

Enzyme Analysis 1. What is the optimal temperature for the “blue,” “red,” and “green” enzymes? 2. Why do you think adding more substrate seems to make less of a difference after a certain point?