The structure shown below represents:
Correct answer: B. Histidine
- A. Proline
- B. Histidine
- C. Glycine
- D. Lysine
Explanation
The above structure represents histidine, as it has five carbon ring structures along -CH2 attached as a radical group.
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Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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