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-).
Summary of Proteins ï Subunits are amino acids ï Amino acids are joined by condensation reactions that form peptide bonds ï The amino acid sequence is a proteinâs primary structure. The primary structure can also be called a polypeptide.aking Polypeptides ï Amino acids are joined by condensation (dehydration) reactions ï Joins the amino group of an amino acid to carboxyl group of another amino acid ï The covalent bond that is formed is called a peptide bond ï As with all condensation reactions, water is removed. H O.