B1.7-9 Enzymes Flashcards
What are enzymes
Globular proteins that act as catalysts
What do enzymes do to act like catalysts
Lower the Activation Energy
The active site is made out of
Amino acids
Induced fit model
Substracted binds to active site to form substrate enzyme complex
Binding induces change in shape, improving the fit
Product is released, enzyme returns to original shape
Temperature _ Rate of reaction because
Increases
Because there’s more kinetic energy
PH Affects
Hydrogen and ionic bonds
Increasing enzyme concentration
Means more active sites so faster ROR
Increasing substrate concentration means
More frequent collisions
Competitive inhibitors
Compete with substrate for active site and occupy it
Non competitive inhibitors
Bond to allosteric site, causing a change in tertiary structure so enzyme can’t bind properly anymore
