A: Vitamin E is a fat-soluble vitamin that is best known for its antioxidant activity. There has been much interest in supplementing with it to treat and prevent a wide variety of conditions. In recent years, however, there has been some concern that high doses of the supplement may actually cause more harm than good.: Vitamin E is an antioxidant that occurs naturally in foods such as nuts, seeds, and leafy green vegetables. Antioxidants protect cells against damage from molecules called free radicals. Free radical damage to cells may contribute to heart disease and cancer.
1.1 Why are proteins important to us. Proteins make up about 15% of the mass of the average person. Protein molecules are essential to us in an enormous variety of different ways. Much of the fabric of our body is constructed from protein molecules. Muscle, cartilage, ligaments, skin and hair - these are all mainly protein materials.
DNA Codes For Proteins PROTEINS DO THE nitty-gritty jobs of every living cell. Proteins are the molecules that give structure and shape to living cells and that carry out all of the chemical reactions nec-essary for life. The importance of DNA is that it contains the information that is used to make all of the proteins on which life depends.