Biological chemistry is the branch of chemistry that examines the chemical components and activities of living things, including those of plants, animals, and microbes.Biochemistry has been involved in the development of many products and processes used every day. These include the discovery and improvement of medical products, cleaning products and DNA recombinant technology which can be used to make important molecules such as insulin and food additives. Biochemical and binocular knowledge has also assisted the quality and quantity of food production through improved agrochemicals, the development of crops with enhanced resistance to pests and disease, and the preparation of foods that improve human health, which includes pre- and pro-biotics and antioxidants.