Reactive parts of an amino acid are:
Correct answer: B. Amino group & carboxyl group
- A. Alpha carbon & amino group
- B. Amino group & carboxyl group
- C. Carboxyl & R group
- D. R group & alpha carbon
Explanation
The name, amino acid, comes from the amino group and the acid group which are the most reactive parts of the molecule.
This question appeared on the NUMS 2015 paper, which you can sit online with every answer explained.
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Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
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