1. Enzymes

2. What Are Enzymes? Many large proteins are enzymes
Act as Catalyst to accelerates (speed up) a reaction

3. Enzymes Are specific for what they will catalyze Are Reusable
End in –ase
-Sucrase
-Lactase
-Maltase

4. How do enzymes Work?
Enzymes work by weakening bonds which lowers activation energy
The minimum amount of energy needed to start a reaction

5. Enzymes Without Enzyme With Enzyme Free Energy
Progress of the reaction
Reactants
Products
Free energy of activation

6. Enzyme-Substrate Complex
The substance (reactant) an enzyme acts on is the substrate
Enzyme
Joins
Substrate

7. Active Site
A region of an enzyme molecule which binds to the substrate.
Active Site
Enzyme
Substrate

8. Induced Fit A change in the shape of an enzyme’s active site
Induced by the substrate

9. Things that change enzyme effectiveness
Temperature
high temps may denature the enzyme.
Changes its shape and makes it nonfunctional pH
most like pH between pH (near neutral)
Substrate and enzyme concentration
High concentrations increase function
Low concentrations decrease function

10. Let’s see how our bodies use enzymes daily