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Enzymes (Enzymes are Catalysts produced by LIVING THINGS (Chemical…
Enzymes
Enzymes are Catalysts produced by LIVING THINGS
Chemical reactions
Carefully controlled
Raising the temperature
Speeds up the reaction
Catalyst
Substance that increases the speed of reaction
Living things produce enzymes (BIOLOGICAL CATALYSTS)
All proteins, chains of amino acids
Enzymes are very SPECIFIC
Chemical reactions- being split apart or joined together
Substrate
Molecule that is changed in a reaction
Has an active site
Joins onto the enzyme
Speed up 1 reaction
Lock and key model
Substrate fits into the enzyme
Temperature and pH affect Enzyme Function
Temperature change, changes rate of reaction
Higher temperature increases the rate
Enzyme DENATURES if the shape of the active site is changed so the substrate won't fit
All enzymes have OPTIMUM temperature
pH is often NEUTRAL (pH7), NOT ALWAYS