Question

Pick up set with non-essential amino acids:

• A. Lysine, Valine, Leucine
• B. Serine, Tyrosine, Cysteine
• C. Tryptophan, Phenylalanine, isoleucine
• D. Threonine, Methionine, Lysine

Answer 1

The correct option is B Serine, Tyrosine, Cysteine

Essential amino acids are those that are essential in the diet. In other words we cannot create them through our own metabolism.
Essential amino acids: Phenylalanine, Threonine, Tryptophan, Methionine, Leucine, Isoleucine, Lysine, Valine, Arginine and Histidine.

Non-essential amino acids are those which can be produced from other amino acids and substances in the diet and metabolism, During times of need, the metabolism can shift into producing the amino acids that it requires for synthesizing protiens essential for our survival.
Non-essential amino acids: ​Cysteine, Asparagine, Alanine, Aspartic acid, Tyrosine, ​Serine, Glutamine, Glycine, Glutamic acid, Proline.
Serine, Tyrosine and Cysteine are non-essential amino acids.
Hence option (b) is correct