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Enzyme Activity

Enzyme Activity. Enzymes. Proteins Act as catalysts to speed up chemical reactions Are specific – each enzyme can carry out only one type of reaction. Animation of Enzyme activity http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_enzymes_work.html.

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Enzyme Activity

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  1. Enzyme Activity

  2. Enzymes • Proteins • Act as catalysts to speed up chemical reactions • Are specific – each enzyme can carry out only one type of reaction. • Animation of Enzyme activity • http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_enzymes_work.html

  3. Active Site = + Enzyme Substrate Enzyme-Substrate Complex + + Enzyme Products

  4. Inhibitors • Slow down chemical reactions. • Competitive inhibitors compete with substrates for the active site • Allosteric inhibitors change the shape of the active site so the substrate can’t attach to the enzyme

  5. Enzyme Competitive Inhibitor Substrate Inhibitor blocks active site stopping enzyme activity.

  6. + Allosteric Inhibitor Enzyme Active Site shape changed No connection

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