1. Enzymes are found in all living cells2. They are protein molecules which

speed up chemical reactions in living things. They are called biological catalysts

3. Enzymes work best at certain temperatures and pHs. At other temperatures and pHs they denature (change shape)

EnzymesEnzymesEnzymesEnzymes

Enzymes

Builder EnzymesBuilder EnzymesBuilder EnzymesBuilder Enzymes

Enzymes

Breaker EnzymesBreaker EnzymesBreaker EnzymesBreaker Enzymes

Enzymes

• Enzyme

• Substrate

EnzymesEnzymesEnzymesEnzymes

Enzymes

EnzymesEnzymesEnzymesEnzymes

Enzymes

AmylaseAmylaseAmylaseAmylase

Amylase

ProteaseProteaseProteaseProtease

Protease

Digestive EnzymesDigestive EnzymesDigestive EnzymesDigestive Enzymes

Digestive Enzymes

LipaseLipaseLipaseLipase

Lipase

1. Enzymes are used in;• Biological detergents• Baby food• Making syrup• Making sugars for slimming foods2. They are used to speed up reactions

which would otherwise require expensive equipment

Uses of enzymesUses of enzymesUses of enzymesUses of enzymes

Uses of enzymes

Uses of EnzymesUses of EnzymesUses of EnzymesUses of Enzymes

Uses of enzymes

1. Yeast cells convert sugar into carbon dioxide and alcohol. This process is called fermentation.

2. Alcohol is used in beer and wine3. Carbon dioxide is used to make bread

rise4. Carbon dioxide turns limewater milky

Making Beer and BreadMaking Beer and BreadMaking Beer and BreadMaking Beer and Bread

Making Beer and Bread

Uses of EnzymesUses of EnzymesUses of EnzymesUses of Enzymes

Uses of Enzymes

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