Lecture 5 Notes

Lecture 5 Notes - BIO 202 Notes Lecture 5: Macromolecules...

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BIO 202 Notes Lecture 5: Macromolecules 3: Proteins Chapter 5: The Structure and Function of Macromolecules 1. 5.4 Proteins have many structures, resulting in a wide range of functions 1. Functions: speed up chemical reactions, structural support, storage, transport, cellular communications, movement, defense against foreign substances 2. Enzymes: regulate metabolism by acting as catalysts 1. Catalyst: chemical agents that selectively speed up chemical reactions in the cell without being consumed by the reaction 2. Can perform its function over and over again 3. Polypeptides 1. Amino Acid Monomers 1. Amino acids: organic molecules possessing both carboxyl and amino groups 1. Composed of: 1. Amino group 2. Carboxyl group 3. Α carbon at center 4. Hydrogen atom 5. R group 2. Amino Acid Polymers 1. Carboxyl group of one amino acid joins with the amino group of another with a dehydration reaction 1. Covalent bond – peptide bond 4. Protein Conformation and Function 1. Four Levels of Protein Structure
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This note was uploaded on 10/13/2008 for the course BIO 202 taught by Professor Dean during the Fall '08 term at SUNY Stony Brook.

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Lecture 5 Notes - BIO 202 Notes Lecture 5: Macromolecules...

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