1. Enzymes

2. Enzymes are catalysts Enzymes are proteins Enzymes can be controlled Enzymes can be denatured Enzymes are found in pineapples

3. Enzymes are Catalysts Chemicals that increase the speed or efficiency of a reaction Are not consumed or changed by the reaction Can be reused

4. Enzymes are Proteins Made from C, H, O, N, S Built by ribosomes Shape is important

5. Enzymes can be controlled Enzymes react with specific substrates Lock-and-key

6. Enzymes can be denatured High temperatures can change the shape of a protein Acids can change the shape of a protein Bases can change the shape of a protein

7. Bromelain Meat tenderizer Protease

8. Papain Meat tenderizer Insect stings

9. Image credits Ananas comosus dsc07804 David Monniaux CAUZ89AN Public Domain Catalytic_Converter Ballista Three_catalases Public Domain Induced fit diagram Tim Vickers Fried egg sunny side up David Benbennick Rainbow Jello Cut 2004 Jul 30 Mark Fickett