GK
SOIL AND AGRICULTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Valine
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Cystine
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Isolucine
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None of these
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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: -Cystine is an amino acid that is found in digestive enzymes, in the cells of the immune system, in skeletal and connective tissues, skin, and hair. Hair and skin are 10% to 14% cystine. Amino acids (AAs) are available as single AAs or in AA combinations.
Detailed explanation-3: -Cysteine and methionine are two amino acids that contain sulfur. Methionine is an essential amino acid, whereas cysteine is synthesized from methionine and therefore is nonessential. Cysteine is classified as a polar, noncharged amino acid while the side chain of methionine is quite hydrophobic.