1. SECTION 2.4: ENZYMES

2. WHAT ARE ENZYMES?
Biological catalysts
Proteins!
Very large!!!

3. Enzymes lower the energy needed for a chemical reaction to occur
ENERGY OF ACTIVATION!!!!

4. Enzymes speed up chemical reactions

5. HOW DO ENZYMES WORK?
Each enzyme catalyzes only ONE chemical reaction
Enzymes are SPECIFIC
A particular enzyme can only speed up its own unique reaction
Why? Enzymes have a unique shape

9. Because enzymes are proteins, they can be damaged (denatured) by changes in:pH
Salt concentration
Heat