Enzymes
Introduction
• Enzymes = organic molecules act as catalysts
– Type of protein
• Catalyst = reduce amount of activation energy
needed for reaction
• Different type of enzyme = different chemical
reaction
Structure
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Function depends on structure
Enzyme
Substrate
Active Site
Product
Lock and Key Model
• Substrate can attach to specific enzyme shape
– Causes reaction
Other
• Words ending in –ase =
enzyme
– Amylase = in mouth
breaking down
carbohydrates
– Lipase = in pancreas
breaking down lipids
– Protease – in stomach
breaks down proteins