1. Page 24 Find out fun fact of the day

2. Titin is the largest known naturally occurring protein and is composed of 34,350 amino acids. It is also known as connectin and is abundant in striated muscle. Though it is 189,819 letters long, its status as the longest word in the English language is debatable, given that it is a technical word not found in the dictionary. http://www.youtube.com/watch?v=NFR- ADakI-c International Union of Pure and Applied Chemistry

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9. Page 20, #6 MacromoleculeElementsMade up of/ Monomer Function Carbohydrate Lipid Nucleic Acid Protein

10. Homework Review

11. ENZYME A little more about Enzymes

12. Enzyme Action Enzyme – special kind of protein that can accelerate chemical reactions while retaining its own structure

13. Enzyme Action Usually end in “ASE”

14. Enzyme Action A chemical reaction is about two molecules coming together and altering their structures.

15. Enzyme Action There is a special orientation of the reactants such that the reaction would proceed much faster, sometimes a million times faster

16. Enzyme Action Such favorable condition can be created with a special material called enzyme or catalyst.

17. Enzyme Action The enzyme forces the reactants into a position most suitable to execute the reaction. The enzyme itself does not change and can be re-used again and again.

18. Enzyme Action Enzymes can be affected by any variable that influences a chemical reaction.

19. Enzyme Action Enzymes produced by human cells generally work best at temperatures close to 37 o C.

20. Do Now: Page 15 and 21 Homework: Page 58, 10 – 15 Quiz Friday, 9/25 Test Tuesday, 9/29 2 – dehydration synthesis 6 across – cholesterol 5 – saturated 10 – starch 12 - hydrolysis Page 15