Proteins

Card Set Information

Author:
chanchan27104
ID:
293844
Filename:
Proteins
Updated:
2015-01-25 16:21:28
Tags:
biology
Folders:
BIO 183,Exam I,Macromolecules
Description:
PEANUT BUTTER JELLY TIEM
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  1. Proteins
    • most structurally complex molecules known
    • Has multiple functions
    • Most important function as catalysts in cells
    • all protein polymers constructed from same 20 amino acid monomers
    • All consists of one or more polypeptides folded and coiled into a specific conformation
  2. Protein Functions
    • Structural support
    • Storage
    • Transport
    • Cellular signalling
    • Movement
    • Defense against foreign substances
  3. Amino Acids
    • organic molecules with carboxyl and amino groups
    • Center is asymmetric carbon atom called theĀ alpha carbon
  4. Four Components attached to Alpha Carbon
    • Hydrogen atom
    • Carboxyl Group
    • Amino Group
    • Variable R group
  5. Four Levels of Protein Structure
    • Primary Structure
    • Secondary Structure
    • Tertiary Structure
    • Quaternary Structure

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