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Enzymes are Important Proteins

Enzymes are Important Proteins. Cornell Trick it out!. Learning Goals…. Describe the function of enzymes a.k.a biological catalyst. Draw a picture of an enzyme reaction. Decide how it is that enzymes get denatured. A.. Enzymes Function.

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Enzymes are Important Proteins

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  1. Enzymes are Important Proteins Cornell Trick it out!

  2. Learning Goals… • Describe the function of enzymes a.k.a biological catalyst. • Draw a picture of an enzyme reaction. • Decide how it is that enzymes get denatured.

  3. A.. Enzymes Function • Speed up reactions by lowering the activation energy. • They remain unchanged in a rxn • Enzymes are not used up by rxn G:\Biology Folders\macromolecules\Enzymes are Important Proteins.ppt

  4. B. What are the parts of a chemical reaction? Reactant 1 reactant 2 products CO2 + H2O H2CO2

  5. C. What is the activation energy? • It’s the energy need to start the reaction.

  6. E. Enzyme Action • Enzymes have specific binding site where the enzyme and substrate bond. • They can build or break up bonds . • Known as “ LOCK AND KEY” model, substrate and enzyme fit perfectly.

  7. F. Enzymes get Denatured! • Enzymes have a shape that allows it to fit a substrate. • This shape can be changed or denatured by … 1. change in temperature (cool, hot) 2. change in pH (addition of H+ ions or OH- ions). “think melted key”

  8. Let review!!! • http://www.dannynicholson.co.uk/enzymetale.swf • http://www.coolschool.ca/lor/BI12/unit7/U07L04/tt1contents.htm

  9. Summary • Respond to the learning goals.

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