The sharing of electrons in alcohol as an example, are much more losely bound; this is a common way that organic compounds are formed, and why organic reactions can proceed at lower temperatures, mediated by enzymes. No enzyme could break down NaCl alone to make pure sodium metal and chlorine gas.
Protein can be categorized into two types: complete and incomplete proteins. Proteins are made up of smaller units, called amino acids. Complete proteins contain all of the amino acids your body needs and include meat, fish, poultry, dairy, and soy products.
There are a number of different types of proteins found within the body, according to the National Institute of Health. 1  These include: 2  Antibodies such as Immunoglobulin G. 3  Enzymes such as Phenylalanine hydroxylase. 4  Messengers such as growth hormones. 5  Structural components such as Actin. 6  Transport and storage such as Ferritin.