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.
Eight Types of Protein and Their Function. Proteins, such as from eggs, form many basic building blocks of life. Proteins are macronutrients that support the growth and maintenance of body tissues. Amino acids are the basic building blocks of proteins and are classified as essential or non-essential.