Which one of the following is not an essential amino acid?
Show Hint
- Lysine
- Tyrosine
- Threonine
- Tryptophan
- Methionine
The Correct Option is B
Solution and Explanation
The amino acids listed in the options are:
- Lysine: Essential
- Tyrosine: Non-essential (because it can be synthesized from phenylalanine, which is essential)
- Threonine: Essential
- Tryptophan: Essential
- Methionine: Essential
Since tyrosine is non-essential, the correct answer is (B) Tyrosine.
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