1. October 19th, 2016
Obj: You will be able to discuss the role of enzymes in living things.
Do Now: Get ready for cycle quiz
Hw: Enzyme Coloring, Read pages 83-85

2. October 20th, 2016
Obj: You will be able to discuss the role of enzymes in living things.
Do Now: have you every heard the word enzyme or catalyst before? What did it mean or how was it used? What was being talked about?
Hw: Read pages 83-85, Lab tomorrow

3. Enzymes

4. Enzymes What are they? What properties do they have?
Why do we need them?
How do they work?
What factors affect their activity?

5. Enzymes – What are they?
Proteins that help chemical reactions to occur in living organisms
Important Parts of a Chemical Reaction
Reactants  Products

6. Enzymes
Specific (a different enzyme for each different type of reactions in the body)
Properties

7. Enzymes Specific Properties
Increase rate of the reaction (help make reaction happen more often or faster)

8. Enzymes Specific Increase rate of the reaction Properties
Unchanged at the end of the reaction
Reusable

9. Enzymes Why do you need them? Specific Properties
Increase rate of the reaction
Unchanged at the end of the reaction
Reusable
Why do you need them?

10. Enzymes (page 83) Need them
Life depends on countless chemical reactions that are essential for survival.
Reactions naturally occur too slow to maintain life!
Need them
An energy barrier must be overcome to begin a chemical reaction.

11. How do enzymes work?

12. Lock & Key Theory
The enzyme needs to bind to the reactants called a substrate at the active site to work.
Reactant
Enzyme

14. Let’s Do An Example

15. Sucrose + H2O
Glucose + Fructose

16. Reactants
Sucrose + H2O
Glucose + Fructose
Products

17. For a reaction to occur the sucrose
and water would have to collide with
enough energy to break bonds and form
the new products.
This energy is the called activation energy.

18. Energy
Progress of reaction

19. Energy
Substrates or
Reactants
Progress of reaction

20. Energy
Products
Substrates
Progress of reaction

21. Energy
Substrates
Products
Progress of reaction

22. Activation energy
Energy
Substrates
Products
Progress of reaction

23. Height aka reduce the activation energy
An Enzyme is like a short cut!
Activation energy
Enzymes reduce the
Height aka reduce the activation energy
Energy
Substrates
Products
Progress of reaction

24. October 21st, 2016
Obj: You will be able to identify how different conditions affect enzyme activity.
Do Now: Finish worksheet from yesterday
Hw: finish lab questions, enzyme packet