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Enzymes:

Enzymes:. Think… FAST! Like Lightning!!. Question/“Food for thought”: Why do we need enzymes?. Enzymes are key to our metabolism: They are needed for every chemical reaction that takes place in the human body . Every Synthesis (anabolic) Reaction uses enzymes

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Enzymes:

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  1. Enzymes: Think… FAST! Like Lightning!!

  2. Question/“Food for thought”:Why do we need enzymes? Enzymes are key to our metabolism: They are needed for every chemical reaction that takes place in the human body. Every Synthesis (anabolic) Reaction uses enzymes Every Decomposition (catabolic) Reaction uses enzymes

  3. Chemical Reactions Synthesis: gets bigger (polymer) Decomposition: gets smaller (monomer) Reactants---_Reaction--------Products Enzymes shorten the arrows! Speed up reaction Make products faster! Speedy delivery!

  4. Homeostasis Enzymes are catalysts: they speed up reaction time so we can go home faster! Home: where we want to go Stasis: because it’s stable! Homeostasis: stability of organism

  5. How do they work? Describe what you think is happening in this picture in relation to ENERGY

  6. How do they work?

  7. Enzyme Structure

  8. 4 Main enzymes of the digestive system • Amylases in the mouth • Proteases in the stomach • Lipases in the small intestine • Polymerases in the small intestine

  9. Amylase • These enzymes are found in saliva and work in the mouth to start digesting carbohydrates

  10. Protease • Are enzymes found in the stomach that help in the digestion of proteins

  11. Lipase: • Digest fat in the small intestine

  12. Polymerase • Digest nucleic acids in the small intestine

  13. Enzymes are Recycled

  14. Digestive System

  15. Denaturing • Sometimes high temperatures or extreme pH values can affect the shape of an enzyme. • This process can make an enzyme less effective, possibly even useless.

  16. Enzyme activity:(go to www demo first)

  17. “Lock and Key” Theory

  18. Enzyme Specificity:

  19. Enzyme plus Substrate= Enzyme /Substrate complex

  20. Recycle Reduce Reuse

  21. Denaturing:

  22. “Check out process” 1. An enzyme is a: A. carbohydrate B. lipid C. protein D. nucleic acid

  23. 1. An enzyme is a: A. carbohydrate B. lipid C. protein D. nucleic acid

  24. 2. An enzyme can work on any substrate. A. True B. False

  25. 2. An enzyme can work on any substrate. A. True B. False Enzymes work on specific substrates only

  26. 3. An enzyme can be used more than once. A. True B. False

  27. 3. An enzyme can be used more than once. A. True B. False The enzyme itself does not change when involved in a chemical reaction so that it can be used over and over again.

  28. 4. The process that results in an altered enzyme shape is: A. Synthesis B. Denaturing C. Decompostion D. Anabolic

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