The British monarch is the chief of state of the United Kingdom. Though Queen Elizabeth II takes little direct part in government, the Crown remains the fount in which ultimate executive power over government lies. These powers are known as royal prerogative and can be used for a vast amount of things, such as the issue or withdrawal of passports, to the dismissal of the Prime Minister or even the declaration of war. The powers are delegated from the monarch personally,
in the name of the Crown, and can be handed to various ministers, or other officers of the Crown, and can purposely bypass the consent of Parliament. The head of Her Majesty's Government, the prime minister, also has weekly meetings with the sovereign, where she may express her feelings, warn, or advise the prime minister in the government's work
EXECUTIVE POWER
The United Kingdom Government The monarch appoints a Prime Minister as the head of Her Majesty's Government in the United Kingdom, guided by the strict convention that the Prime Minister should be the member of the House of Commons most likely to be able to form a Government with the support of that House. In practice, this means that the leader of the political party with an absolute majority of seats in the House of Commons is chosen to be the Prime Minister. If no party has an absolute majority, the leader of the largest party is given the first opportunity to form a coalition. The Prime Minister then selects the other Ministers which make up the Government and act as political heads of the various Government Departments. About twenty of the most senior government ministers make up the Cabinet and approximately 100 ministers in total comprise the government. In accordance with constitutional convention, all ministers within the government are either Members of Parliament or peers in the House of Lords
The Prime Minister and the Cabinet
The Prime Minister is the most senior minister in the Cabinet. They are responsible for chairing Cabinet meetings, selecting Cabinet ministers (and all other positions in Her Majesty's government), and formulating government policy. The Prime Minister being the de facto leader of the UK, he or she exercises executive functions that are nominally vested in the sovereign (by way of the Royal Prerogatives).