BIOLOGY
AMINO ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Benzene, Phenylalanine & Lysine
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Glycine, Formalin & Proline
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Proline, Hisidine & Serine
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Hydroxy Benzene, Cysteine & Valine
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Detailed explanation-1: -Proline contains a secondary amine group, called an imine, instead of a primary amine group. For this reason, proline is called an imino acid.
Detailed explanation-2: -Histidine is one of the least abundant amino acids in whole body protein in humans.
Detailed explanation-3: -Histidine, an essential amino acid, has as a positively charged imidazole functional group. The imidazole makes it a common participant in enzyme catalyzed reactions.
Detailed explanation-4: -Proline and its metabolite (hydroxyproline) are unique amino acids (AA) both chemically and biochemically (Hu et al. 2008; Kaul et al. 2008). They constitute one-third of AA in the collagen proteins which comprise approximately 30% of body proteins.