NURSING ANM AND GNM

Detailed explanation-1: -A peptide is a short string of 2 to 50 amino acids, formed by a condensation reaction, joining together through a covalent bond. [1] Sequential covalent bonds with additional amino acids yield a peptide chain and the building block of proteins.

Detailed explanation-2: -Peptide molecules are composed of two or more amino acids joined through amide formation involving the carboxyl group of each amino acid and the amino group of the next. The chemical bond between the carbon and nitrogen atoms of each amide group is called a peptide bond.

Detailed explanation-3: -A chain consisting of only two amino acid units is called a dipeptide; a chain consisting of three is a tripeptide.

Detailed explanation-4: -A dipeptide has two amino acids. A tripeptide has three amino acids. A tetrapeptide has four amino acids.

Detailed explanation-5: -A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides.