Cholesterol,molecular model. Atoms are represented as spheres and are colour-coded: carbon (blue),hydrogen (yellow) and oxygen (red). Cholesterol is a lipid,a fat-like substance,though chemically it is a sterol,a type of alcohol. It is an important cell chemical,and plays a crucial role in the synthesis of bile salts and hormones,and in transporting fats in the bloodstream. High blood levels of LDL (low- density lipoprotein) cholesterol compared to HDL (high-density lipoprotein) cholesterol are thought to raise the risk of atherosclerosis,the build-up of fatty deposits on artery walls. This is a major cause of heart attack and stroke | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Winter, Dr. Mark J. |
Bildgröße: | 6437 px × 4327 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |