Although legalization activists and many marijuana users believe smoking pot has no negative effects, scientific research indicates that marijuana use can cause many different health problems. Marijuana is the most commonly used illicit drug in the United States.
A peptide bond (amide bond) is a covalent chemical bond formed between two amino acid molecules.ne loses a hydrogen and oxygen from its carboxyl group (COOH) and the other loses a hydrogen from its amino group (NH 2). This reaction produces a molecule of water (H 2 O) and two amino acids joined by a peptide bond (-CO-NH-).
Concept 4: The Peptide Bond. Amino acids are joined together in proteins by peptide bonds. A peptide bond forms between the carboxyl group of one amino acid (amino acid 1 in the figure below) and the amino group of the adjacent amino acid (amino acid 2).