Proteins: Structure and Functions · NCERT Biology

In a protein, amino acids are linked by a peptide bond which is formed between the:

  1. Between the carboxyl groups of two adjacent residues
  2. Between the amino groups of two adjacent residues
  3. Between the carboxyl and amino groups of adjacent residues
  4. Between the R-groups of two adjacent amino acids
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Correct answer: Between the carboxyl and amino groups of adjacent residues

A peptide bond is formed when the carboxyl (-COOH) group of one amino acid reacts with the amino (-NH2) group of the next amino acid, releasing water in a condensation reaction.

Difficulty: Medium Question 8 of 20

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