Question

The linkage present in proteins and peptides is
O
II
(a) -C-NH-
O
II
(b) -C-O
O O
II II
(c) -C-O-C-
(d) -NH-

Answer 1

Answer:

your answer is to this is given in attachment

Answer 2

    O

    II

(a) -C-NH-

Explanation:

Proteins are linear polymers formed by linking the α-carboxyl group of one amino acid to the α-amino group of another amino acid with a peptide bond (also called an amide bond). The formation of a dipeptide from two amino acids is accompanied by the loss of a water molecule. Proteins are formed by joining the −CO2H end of one amino acid with the −NH2 end of another to form an amide. The −CONH− bond between amino acids is known as a peptide bond because relatively short polymers of amino acids are known as peptides.

Option A is the answer.