Topic 1.2

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  • Created by: emx99
  • Created on: 06-01-16 21:19

1. What is a primary structure?

  • The sequence of amino acids that makeup a polypeptide chain joined by ester bonds
  • The sequence of globular proteins that makeup a polypeptide chain joined by peptide bonds
  • The sequence of amino acids that make a polypeptide chain joined by peptide bonds
  • The helix or pleated sheet shape
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2. Dissacharides can be split by

  • hydrolysis of ester bonds
  • condensation of ester bonds
  • Hydrolisis of glycosidic bonds
  • condensation of glycosidic bonds

3. What is the purpose of phospholipids in the cell surface membrane?

  • They protect the membrane
  • They create the membrane by being arranged in a bilayer with hyrophylic phosphate heads and hydrophiboc lipid tails
  • They let chemicals in and out of the cell
  • They create the membrane by being arranged in a bilayer with hydrophobic phosphate heads and hydrophilic lipid tails

4. Describe the structure of an amino acid

  • An R group
  • An amino group, a carboxyl group, a carbon atom and an R group
  • An amino acid attatched to a carboxyl group and a carbon atom
  • A carboxyl group attatched to an amino group

5. Lipids are insoluble in water becuase they

  • Are oddly shaped
  • Are hydrophobic
  • Are hydropholic
  • Contain too many disulfide bonds

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