Question

A bond formed between carboxyl group of one amino acid and amino group of adjacent amino acid is called

• A. peptide bond
• B. hydrogen bond
• C. covalent bond
• D. All of these

Answer 1

Answer: (A)

A peptide bond is a chemical bond formed between two molecules when the carboxyl grcip of one molecule reacts with the amine group of the other molecule; thereby releasing a molecule of $H_{2}O$. This is a dehydration synthesis reaction and usually occurs between amino acids. The resulting bond is a peptide bond and the resulting molecule is an amide .