The term 'cell component' refers to the various parts that make up a cell. An ANODE is a positively charged electrode, typically made of metal, which is used to attract and collect electrons. A BAR is a solid, usually metal, rod or strip that is used for support or as a barrier. A CAMERA is a device used to capture still or moving images. RNA stands for ribonucleic acid, which is a type of molecule that helps to carry out instructions from DNA. An ironbar is a long, solid piece of iron that is often used in construction. All of these components are essential parts of a cell.