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Identify the correct statement. (a)Peptide bond is formed by the loss of water molecule

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in Chemistry – Class 12 by (188k points)
Identify the correct statement.

(a) Peptide bond is formed by the loss of water molecule

(b) A protein is made of only one type of amino acid

(c) Dipeptides consists of different amino acids

(d) Glycylalanine is a tripeptide

The question was posed to me in a national level competition.

My query is from Biomolecules topic in portion Biomolecules of Chemistry – Class 12

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Right answer is (a) Peptide bond is formed by the loss of water molecule

Easy explanation: The reaction between two molecules of same of different amino acids proceeds through the linking of COOH group of one and the NH2 group of the other along with the loss of H2O and formation of a peptide bond. The product is called a dipeptide.

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