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.
Answer   To proteins   Answer   Enzymes are usually proteins but some also contain nucleic acids (RNA in particular) and the list of chemical reactions that are c â¦ atalyzed by RNA has been expanding. 3 people found this useful.here are four classes of biological molecules. These include  lipids, carbohydrates, proteins, as well as nucleic acids. All  living things are made up of one of these type â¦ s of living  molecules.