The UK Parliament is made up of two chambers - the House of Lords and the House of Commons. The House of Commons is the more powerful chamber, composed of 650 elected members of parliament. The House of Lords has around 750 members, most of whom inherit their titles. Both chambers review and pass laws, while the government runs the country day-to-day. The monarch plays a largely ceremonial role, signing new laws and meeting with the prime minister weekly. Parliament provides oversight of the government to ensure it properly administers the UK.