Among the following, which is a non-essential amino acid?

The correct answer is Option (3) → Tyrosine

Ten of the twenty common amino acids are essential: valine, leucine, isoleucine, arginine, lysine, threonine, methionine, phenylalanine, tryptophan and histidine. Tyrosine is not in this list. The body makes it from phenylalanine by adding an –OH group to the benzene ring, so tyrosine is non-essential. Arginine, lysine and histidine are essential amino acids.

NCERT (2026-27 edition):

Table 10.2: Natural Amino Acids (rows)