Other questions in this quiz

2. The amino acids with polar uncharged R groups are characterised by:

  • uncharged acidic groups
  • polar, charged groups in the side chains which can form H bonds eg OH, SH, C=O
  • polar, uncharged groups in the side chains which can form H bonds eg OH, SH, C=O
  • uncharged basic groups

3. The isoelectric point for glycine is approx pH 6. What is the predominant charge on glycine at pH 2?

  • neutral
  • positive
  • no effect of pH on charge
  • negative

4. The AA with 'non-polar' aliphatic R groups are characterised by:

  • high levels of carbon and oxygen atoms in the side chain
  • high levels of carbon and hydrogen in the side chain
  • high levels of acidic or basic groups
  • high levels of hydrogen bonding between carbon and hydrogen atoms in the side chain

5. Which component of the general structure of AA is acidic?

  • H
  • R-group
  • COO-
  • NH3+

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