1. TSW identify the structure and function of an enzyme
Enzymes
TSW identify the structure and function of an enzyme

2. What is an enzyme? PROTEIN that speeds up a chemical reaction
CATALYST: any substance that speeds up a chemical reaction

3. How does an enzyme work?
They lower ACTIVATION ENERGY (the energy needed to get a chemical reaction started)

4. What does this look like?

5. Enzyme Action Enzyme binds to 1 or more of the reactants in a reaction
The reactants that bind to the enzyme are called SUBSTRATES
The site where the enzyme & substrate bind is the ACTIVE SITE
The shape of the ACTIVE SITE is very specific (Lock & Key) to the SUBSTRATE

6. Enzyme Action
The ENZYME-SUBSTRATE COMPLEX is formed when the enzyme and substrate connect, this lowers ACTIVATION ENERGY

7. Enzyme Action Product is released from the ENZYME-SUBSTRATE COMPLEX
Key Point: The enzyme is NOT changed at all in this process

8. Enzyme Action
4. Enzyme is now free to react with another SUBSTRATE