Which one of the following is the simplest amino acid?
Correct answer: D. Glycine
- A. Lysine
- B. Leucine
- C. Alanine
- D. Glycine
Explanation
Glycine is the simplest amino acid because it has the smallest side chain, which consists of just a single hydrogen atom. This simplicity makes it the most basic building block of proteins.
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About Macromolecules
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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