The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.
Peptide Bond. Covalent bond between the nitrogen of the amino group of one amino acid and the carbon of the carboxyl group of a second amino acid, joining the 2 amino acids together in a peptide or protein.
Protein, and the amino acids that comprise it, is the primary source of nitrogen for your body. Many parts of your body contain high amounts of nitrogen: proteins, enzymes, DNA and important biochemicals. Ammonia is produced during the breakdown of amino acids and other molecules in your body that contain nitrogen.