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Enzymes. What is an enzyme? Organic catalyst Protein molecule.

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Presentation on theme: "Enzymes. What is an enzyme? Organic catalyst Protein molecule."— Presentation transcript:

1 Enzymes

2 What is an enzyme? Organic catalyst Protein molecule

3 Speed up chemical reactions by lowering the activation energy What is the function of an enzyme?

4 Activation Energy energy required to start all chemical reaction How can all reactions require energy, if some are considered exergonic/exothermic?

5

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7 Induced-Fit Model

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9 Factors that affect enzyme functioning 1.Temperature 2.pH 3.Enzyme concentration 4.Substrate concentration 5.Cofactors/coenzymes 6.inhibitors

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14 Cofactors/Coenzymes

15 Feedback Inhibition End product controls action of enzyme When end product binds to enzyme, there is a change of shape and enzyme no longer functions

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