Definitions

Polypeptides: A polypeptide is a longer, continuous, unbranched peptide chain. It is a type of protein that consists of one or more amino acids linked by peptide bonds.

Peptides: Peptides are short chains of amino acids linked by peptide bonds. They are typically shorter than proteins and can be found in various biological contexts, such as hormones, neurotransmitters, and enzymes.

Peptide Bond: A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O).