Reactor components are essential parts of a nuclear reactor that facilitate the process of nuclear fission. Key components include the reactor core, where the fission reaction occurs, and the fuel rods, which contain nuclear fuel like uranium. Other important parts are the control rods, used to manage the reaction rate, and the coolant, which removes heat from the core to prevent overheating. Additionally, the containment structure surrounds the reactor to protect against radiation leaks. The pumps circulate the coolant, while the steam generator converts heat into steam to drive turbines for electricity production. Each component plays a vital role in ensuring the reactor operates safely and efficiently.