NURSING ANM AND GNM

Detailed explanation-1: -Methionine and cysteine are the two primary sulfur-containing amino acids in mammals. Methionine is an essential amino acid, obtained by dietary intake while cysteine is non-essential and a metabolite of methionine metabolism.

Detailed explanation-2: -Methionine, cysteine, homocysteine, and taurine are the 4 common sulfur-containing amino acids, but only the first 2 are incorporated into proteins. Sulfur belongs to the same group in the periodic table as oxygen but is much less electronegative.

Detailed explanation-3: -General description. Cysteine is a non-essential amino acid important for making protein, and for other metabolic functions. It’s found in beta-keratin. This is the main protein in nails, skin, and hair.

Detailed explanation-4: -Answer. The sulphur containing side chain of cysteine is hydrophobic, highly reactive and capable of reacting with another cysteine.

Detailed explanation-5: -So, the correct answer is ‘Methionine’