Polypeptides are synthesized from amino acid building blocks. The condensation reaction between the growing polypeptide chain and the next amino acid to be added involves the loss of ________________.
A. a water molecule.
B. an amino group.
C. a carbon atom.
D. a carboxylic acid group.

During the condensation of amino acids to form polypeptide, the carboxylic group of one amino acid reacts with amino group of another amino acid. This leads to formation of amid linkage.

The reaction is shown in the figure.

As shown, there is removal of water molecule during formation of polypeptide.

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Polypeptides are synthesized from amino acid building blocks. The condensation reaction between the growing polypeptide chain and the next amino acid to be added involves the loss of ________________. A. a water molecule. B. an amino group. C. a carbon atom. D. a carboxylic acid group.

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Polypeptides are synthesized from amino acid building blocks. The condensation reaction between the growing polypeptide chain and the next amino acid to be added involves the loss of ________________.
A. a water molecule.
B. an amino group.
C. a carbon atom.
D. a carboxylic acid group.