Animation of a euakryotic cell showing its internal components. The central nucleus (pink) contains the cell's genetic information in the form of DNA (orange). This is read to produce proteins by the ribosomes (dots) in surronding endoplasmic reticulum. Mitochondria (ovals containing several layers) provide energy for the cell. The centrosome comprises two centrioles (grey) at right angles to each other, which organise proteins that give the cell its structure. The Golgi apparatus (irregular blue mass) organises proteins and lipids produced by the cell. The cell is enclosed by a phospholipid bilayer membrane.