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Enzymes Chapter 6.3 page165 Enzyme Lab Catalase Blood & Liver H 2 O 2 Toxic H 2 O 2 +catalase= H 2 O + O 2.

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Presentation on theme: "Enzymes Chapter 6.3 page165 Enzyme Lab Catalase Blood & Liver H 2 O 2 Toxic H 2 O 2 +catalase= H 2 O + O 2."— Presentation transcript:

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2 Enzymes Chapter 6.3 page165

3 Enzyme Lab Catalase Blood & Liver H 2 O 2 Toxic H 2 O 2 +catalase= H 2 O + O 2

4 Properties of Enzymes Proteins Catalysts Speed reactions Work fast Denature at high temp

5 Enzyme-Substrate complex Substrate Active site = where the substrate ( reaction molecule) connects to enzyme Active Site Enzyme

6 Enzymes remain unchanged! Enzymes are not used up No more substrate = end to the reaction Synthesis or Decomposition reactions Before After

7 Lock & Key Model One enzyme for every substrate unique fit Substrate Enzyme

8 Enzymes are pH specific Different enzymes Different body areas Different optimum pH Examples: Stomach= acid pH Mouth= basic pH Stomach Blood Mouth

9 Enzymes are temperature dependent…... Most at body temperature 37 o C Denature at high temperatures


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