Cell culture has now become one of the main technologies used in life science. It is a general term for taking some tissues from the biological body and dispersing them into single cells or directly taking single cells from the body and cultivating them in an artificial environment conducive to growth. Cell culture media usually include appropriate cell energy sources and compounds that regulate the cell cycle. A typical medium also needs to be supplemented with amino acids, vitamins, inorganic salts, glucose, and serum to provide growth factors, hormones, and attachment factors.