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Example2:

Example2: . Building a protein from amino acids:. Substrate: Amino acids. Product: The protein. Chemical reaction : A process where atoms and bonds are re-arranged. We define:. Beginning substance(s). Ending substances. Reactant(s). Products. Substrate(s). Notes .

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Example2:

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  1. Example2: Building a protein from amino acids: Substrate: Amino acids Product: The protein

  2. Chemical reaction: A process where atoms and bonds are re-arranged. We define: Beginning substance(s) Ending substances Reactant(s) Products Substrate(s) Notes

  3. Consider the Benedict result from the four test tubes: (1. water, 2. starch, 3. saliva, 4. saliva + starch) 1) Which one showed presence of sugar? Why not in the others? 2) What was the purpose of dipping in warm water? 3) What was the purpose of the boiling water in the end?

  4. Enzyme notes – cont.

  5. Example1: Glucose Starch Digestion by saliva Amylase Substrate: Starch (Amylose) Products: Glucose molecules

  6. Process of Enzyme Action: Reactants Substrates Products s l o w fast! Enzyme

  7. Process of Enzyme Action: complex Product release Binding to Active Site Product release

  8. Process of Enzyme Action: Notes Step 1: Enzyme binds substrate Step 2: Enzyme and Substrate form a complex. Step 3: Changes occur in substrate. Step 4: Release of products, enzyme can start again. fast!

  9. Process of Enzyme Action: 3. Product Release1 1. Binding to Active Site 2. Temporary Enzyme-Substrate Complex 4. Product Release2 Notes

  10. Enzyme Animation Starch digestion Course Website

  11. Amylase (enzyme) Amylose / Starch (Substrate)

  12. Fragmented polysaccharide (Product)

  13. What is the relationship between: • enzyme, protein • enzyme, amino acids • amylase, enzyme • protein, amino acids • 2) Arrange the four terms in a brace map, using ‘our’ arrows. enzyme, protein, amino acids, amylase. 09.07.11 Journal 2

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