3 phosphates Energy is stored in the bonds between the phosphates and is released when the bonds are broken Supplies energy for all biological work. The differences in amino acids are in the 20 different types of R groups. Basic Amino Acid Structure Formation of a Peptide Bond Two amino acids can combine, with the carboxyl of one attaching to the amino group of the other.
Water is removed.
This 5 carbon sugar is deoxyribose. This is the RNA 5 carbon sugar, ribose. More information on nucleotide bases. This is an example of a triglyceride. To the right is a 3 carbon glycerol molecule.