'Factors affecting enzyme action' presentation slideshows

Chapter Twenty One

Chapter Twenty One. Enzymes and Vitamins. Enzymes. _____________ for biological reactions Proteins Lower the __________ _________ ___________ the rate of reaction Have specific shapes that ______ the ___________ of reactants Activity lost if _____________

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Enzymes

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Organic Compounds

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Enzymes

Enzymes. Characteristics of Enzymes. Proteins Catalysts Speed up chemical reactions without being used up. Remember that proteins have a very specific structure. Primary through quaternary structure must be maintained for the protein to function properly What happens if it is not?

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Enzymes

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Enzymes

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ENZYMES

ENZYMES. Biological Catalysts. Properties: - proteins - each enzyme controls a specific chemical reaction in living cells HIGHLY SPECIFIC - enzymes involved in a chemical reaction remain unchanged throughout the reaction. This makes them reusable!!!

260 views • 13 slides

Enzymes

Enzymes. Enzymes Factors Affecting Enzyme Action. Enzymes. Catalyst (substances which make chemical reactions go faster) for biological reactions Over 4000 biochemical reactions Most are proteins Increase the rate of reaction Activity lost if denatured (structure change)

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Factors Affecting Enzyme Action

Factors Affecting Enzyme Action. Temperature and pH. Enzymes can denature. Enzymes are made of complex protein structures. If an enzyme is exposed to excessive heat or pH the protein structure can denature and become inactive. Effect of Temperature .

451 views • 6 slides