1. Factors Affecting Enzymes
Mrs. Harper
9/14/17
Biology

2. September 14, 2017
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3. Do Now 9/14/17
Are substrates considered reactants or products in a reaction?
Why are enzymes considered catalysts?
What do enzymes have to bind with to facilitate the reaction?
What is the place where the binding occurs called?
Name one of the enzymes that we learned about Friday and describe its function.
Why are enzymes considered specific?
Why are enzymes considered reusable?

4. How do enzymes speed up reactions?
By lowering the activation energy of the reaction
Activation energy = the energy needed to start the reaction
Reaction without enzyme
Reaction after enzyme has lowered activation energy

5. Catalysts Enzymes = catalysts, because it lowers activation energy
Speeds up a reaction
Enzymes = catalysts, because it lowers activation energy
Less energy required  Faster Reaction

6. Enzyme Structure
The shape, or structure of an enzyme determines it’s function

7. Denaturing To denature = to change shape
If an enzyme is denatured (changes shape), the enzyme’s effectiveness will decrease.

8. Temperature, pH, substrate concentration
Enzymes work most efficiently within a certain range of temperatures, pH values, and substrate concentrations

9. Factors Affecting Enzymes
If the temperature, pH or concentration is too high or too low, an enzyme will denature

10. Label the two curves on the graph
Reaction without enzyme
Reaction with enzyme

11. Temperature

12. pH

13. Substrate Concentration

14. 28 °C
pH= 4.0
Rate of Reaction
Rate of Reaction
Temperature pH