The House consists of 646 elected members, who are known as Members of Parliament or MPs. Each MP is elected by a particular geographical area known as a ''constituency''. By convention, the leader of the party which has the majority of MPs becomes Prime Minister and forms a government, while the party with the second-largest number of MPs becomes the official Opposition ("Her Majesty's Loyal Opposition"). | The House consists of 646 elected members, who are known as Members of Parliament or MPs. Each MP is elected by a particular geographical area known as a ''constituency''. By convention, the leader of the party which has the majority of MPs becomes Prime Minister and forms a government, while the party with the second-largest number of MPs becomes the official Opposition ("Her Majesty's Loyal Opposition"). |