Biochemistry is the study of chemical reactions of life. The basic principles are common to all living organisms. Most of the important biochemical reactions are very similar but there are exceptions. Three main important nutrients are proteins, carbohydrates and lipids, these molecules are called macromolecules. They are processed in the living organism to provide two very important components – ATP (adenosine triphosphate) and they are used as building blocks to rebuild and grow AAs, FAs, and monosaccharides. We consume macromolecules from plants and animals and they are metabolized (broken down) and restructured in our body according to our needs. To get the building blocks and energy from the macromolecules which need to be broken up. The biochemical reactions in our body are controlled and catalyzed by enzymes (proteins) in our body and requires communication by hormones (proteins, glycoproteins, etc)Biochemical reactions happen in aqueous solutions such as cytosol, plasma and other bodily fluids. All biochemical reactions happen in water and most of the components of biochemical reactions are compounds are water soluble and the components that aren’t water soluble and they are not able to take part in the reaction. <span