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-).
The unique sequence of amino acids that makes up a protein is called the protein's primary structure. Amino acids connect with one another through chemical bonds at the molecular level. Each amino acid has a general formula attached to a side chain. Amino acids differ from one another based on the type of side chain they possess.