Amino Acids and DNA (Triple) Quiz
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5 questions, one answer each
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1. What key feature allows amino acids to undergo condensation polymerisation?
- A. A single C=C double bond
- B. Two different functional groups in the same molecule
- C. A ring of six carbon atoms
- D. No functional groups
2. What are chains of amino acids called?
- A. Nucleotides
- B. Polypeptides
- C. Polyesters
- D. Alkenes
3. What is the monomer unit of DNA called?
- A. Amino acid
- B. Nucleotide
- C. Monosaccharide
- D. Ester
4. What shape does a DNA molecule form?
- A. A single straight chain
- B. A double helix
- C. A branched network
- D. A flat ring
5. An amino acid contains a –COOH group. Based on this, how would this group behave in water, and why?
- A. It would fully ionise, because all functional groups fully ionise in water
- B. It would partially ionise, because –COOH groups behave as weak acids
- C. It would not dissolve at all, because –COOH is insoluble
- D. It would react explosively with water