NEET 2019 · ChemistryAmino acidsPrevious Year Question
The non-essential amino acid among the following is:
Answer: (C) Alanine. \textbf{Answer:} (C) Alanine is a non-essential amino acid synthesised by the body.
- A.Valine
- B.Leucine
- C.Alanine✓
- D.Lysine
Correct Answer
(C) Alanine
Solution & Explanation
\textbf{Answer:} (C) Alanine is a non-essential amino acid synthesised by the body. \textbf{Solution:} Non-essential amino acids are those the human body can synthesise itself and need not obtain from the diet. Valine, leucine and lysine are essential amino acids (must be supplied by food), whereas alanine is non-essential — the body makes it readily, e.g. from pyruvate by transamination. Hence the answer is alanine.
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