Fatty acid synthesis is the formation of fatty acids from malonyl-CoA and acetyl-CoA precursors by action of enzymes called as fatty acid synthases. It is a very significant part of the lipogenesis procedure that - together with glycolysis - stands behind formatting fats from blood sugar in living organisms. Such as β-oxidation, straight-chain fatty acid synthesis occurs by the six recurring reactions shown follows, until the 16-carbon palmitic acid is formed.