1. Sec 2.3 Chemical Reactions and Enzymes
Unit 2
Sec 2.3 Chemical Reactions and Enzymes

2. B. Enzymes Activation Energy
a. Amnt of energy required to start a reaction
b. Catalysts:
c. Enzymes: chemical CATALYSTS which speed up the rate of chemical reactions by lowering the activation energy

3. B. Enzymes Enzymes are proteins:
Enzymes are very shape specific (like a puzzle)
Substrate: the substance being catalyzed by the enzyme

4. B. Enzymes Lock and Key Theory
Substrate will fit into enzyme shape at the active site
Enzyme will slightly adjust to substrate weakening substrate bonds
Enzyme will transform substrate into product and release it

5. B. Enzymes

6. B. Enzymes
Enzyme Video
Practical use of Enzymes

7. B. Enzymes Enzyme will remain: Will affect Enzyme functions:pH
temperature
enzyme & substrate concentration
Denaturing (________) a protein/enzyme can occur by temp. or pH change