Biochemistry Revision

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  • Created by: ImFord
  • Created on: 05-04-23 15:12

1. What is the difference between a Bronsted-Lowry acid and a Bronsted-Lowry base?

  • Acids are more reactive than bases
  • Acids are more common than bases
  • An acid is a H+ donor and a base is an H+ acceptor
  • A base is an H+ donor and an acid is an H+ acceptor
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Other questions in this quiz

2. What characteristic is NOT present in β-sheets?

  • Twisted and pleated to make it less compact
  • 2 residues repeat every 7Å
  • Sheet arrangement with H bonds between backbone amides
  • Pleated due to rippled edges (zigzag shape)

3. Which isomer occurs naturally?

  • Neither
  • D
  • L
  • Both

4. What is a β-barrel?

  • A rolled-up, 4-segment hairpin of 8 β-sheets
  • 8 β-sheets rolled up to form different configurations
  • All of the above
  • A short loop connection from 8 β-sheets

5. What is the Levinthal paradox (1968)?

  • Protein folding must be predetermined as it would take a lot of time if the chain was randomly searched for the correct conformation
  • Protein folding is random and the chain is randomly searched for the correct conformation
  • Multiple conformations are attempted by proteins before the correct one is discovered
  • None of the above

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