Chapter 14 Biomolecules, Class 12 Chemistry Chapter 14 Biomolecular, Chemistry Class 12 | Page 12

Essential and Non-essential Amino Acids
Human body can synthesise ten amino acids, called non-essential amino acids. The remaining ten amino acids required for protein synthesis are not synthesised by body and are called essential amino acids. They are
1.
Phenylalanine
2.
Histidine
3.
Tryptophan
4.
Valine
5.
Methionine
6.
Threonine
7.
Arginine
8.
Leucine
9.
Isoleucine
10.
Lysine
Nomenclature
They are known by their common names and abbreviated by first three letters of their common names e. g., glycine as „ gly ‟ and alanine a as „ ala ‟.