Biology Biological molecules

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  • Created by: Chloesn
  • Created on: 10-04-14 23:32
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  • Chapter 7 Biological molecules
    • Water
      • Polar molecule
      • Hydrogen bonding
      • Slight dipoles
      • Covalent sharing electron
      • Heat and temperature
        • Specific heat capacity
          • Raise 1kg by 1*C
        • Latent heat
      • Solvent propeties
        • Excellent
        • Ions spread between molecules
      • Density and viscosity
        • Ice is denser
        • Difficult to push attracted molecule apart
      • Cohesion and surface tension
        • Stick together
        • Surface pulled closer together from below
    • Proteins
      • Amino acids
        • Structure
          • Primary
            • Order of amino acids
            • Alpha/beta chains
          • Secondary
            • Coil into alpha helix
              • Hydrogen bonds
            • Regular structure beta fold
              • Hydrogen bonds
          • Tertiary
            • Folds round more
            • Bonds
              • Hydrogen
              • Ionic
                • pH
                • Rgroup and full charge
                  • Stronger than hydrogen
              • Disulfide (bridge)
                • Sulphur
                • R-groups
              • Hydrophobic interactions
                • R-groups with carbon and hydrogen
                • Weak
          • Quaternery
            • Several proteins (polypeptide sub units)
        • 20 different
      • Carboxyl group -COOH
      • Amnie group - NH2
      • R-group
      • Peptide bond
        • Covalent bonds
      • Polypeptide chain
      • Reactions
        • Condensation
        • Hydrolysis
    • Structure
      • Primary
        • Order of amino acids
        • Alpha/beta chains
      • Secondary
        • Coil into alpha helix
          • Regular structure beta fold
          • Tertiary
            • Folds round more
            • Bonds
              • Hydrogen
              • Ionic
                • pH
                • Rgroup and full charge
                  • Stronger than hydrogen
              • Disulfide (bridge)
                • Sulphur
                • R-groups
              • Hydrophobic interactions
                • R-groups with carbon and hydrogen
                • Weak
          • Quaternery
            • Several proteins (polypeptide sub units)
        • Collegen
          • Fibourous
          • Insoluble
          • Cross link - fibrils
            • Fibres
        • Heamoglobin
          • Globular
          • a,a,b,b fold
          • Soluble
        • Cellulose
          • 1-4 beta gb
          • 180*C
          • Fibrils, fibres Hbond with neighbour
        • Carbohydrates
          • Sugar units Cn H2n On
          • Monosaccharides
            • 1 sugar unit
            • Alpha glucose OH below
            • Beta glucose OH above
          • Disaccharides
            • Polysaccharides
            • 2 sugar units
            • 2 Link by glcosidic bond to make
              • Monosaccharides
                • 1 sugar unit
                • Alpha glucose OH below
                • Beta glucose OH above
        • Lipids
          • Triglycerides
            • 3 fatty acids
              • -COOH
            • Glycerol molecule
              • -OH
                • Ester bond
                  • -COOH
            • Insoluble
            • Un/saturated
        • Cholesterol and steriods
          • Steroids formed from cholesterol
        • Phosphlipids
          • Phosphate
            • Dissolves
        • Amylose
          • Alpha glucose 1-4 gb
          • Found in starch
          • Coil
            • Doesn't affect water potential
          • Unbranched broken by hydolysis
          • Store
        • Glycogen
          • 1-6 and 1-4 alpha gb
          • Branches- broken used for energy
          • Coil, stores
      • Phosphlipids
        • Phosphate
          • Dissolves

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