In this topic
What to be able to answer
- Know what MPs and constituencies are.
- Separate the House of Commons from the House of Lords.
- Understand what life peers, hereditary peers, and the Speaker do.
- Recognise which chamber can overrule the other.
Learn
The House of Commons, the House of Lords and the Speaker

The system of government in the UK is a parliamentary democracy. The UK is divided into parliamentary constituencies. Voters in each constituency elect their Member of Parliament (MP) in a General Election. All of the elected MPs form the House of Commons. Most MPs belong to a political party, and the party with the majority of MPs forms the government. If one party does not get a majority, two parties can join together to form a coalition.
The House of Commons is regarded as the more important of the two chambers in Parliament because its members are democratically elected. The Prime Minister and almost all members of the cabinet are members of the House of Commons. Each MP represents a parliamentary constituency. MPs represent everyone in their constituency, help to create new laws, scrutinise and comment on what the government is doing, and debate important national issues.
Democratic Authority in the UK
Separate elected power from ceremonial authority.
The key test contrast: elected MPs drive government; the monarch reigns but does not rule.
Members of the House of Lords, known as peers, are not elected by the people and do not represent a constituency. The role and membership of the House of Lords has changed over the last 50 years.
Until 1958, all peers were hereditary (meaning they inherited their title), senior judges, or bishops of the Church of England. Since 1958, the Prime Minister has had the power to nominate peers just for their own lifetime. These are called life peers. They have usually had an important career in politics, business, law or another profession.
Since 1999, hereditary peers have lost the automatic right to attend the House of Lords. They now elect a few of their number to represent them in the House of Lords.
The House of Lords is normally more independent of the government than the House of Commons. It can suggest amendments or propose new laws, which are then discussed by MPs. The House of Lords checks laws that have been passed by the House of Commons to ensure they are fit for purpose. The House of Commons has powers to overrule the House of Lords, but these are not used often.
Debates in the House of Commons are chaired by the Speaker. The Speaker is the chief officer of the House of Commons. The Speaker is neutral and does not represent a political party, even though he or she is an MP, represents a constituency and deals with constituents' problems like any other MP. The Speaker is chosen by other MPs in a secret ballot.
The Speaker keeps order during political debates to make sure the rules are followed. This includes making sure the opposition has a guaranteed amount of time to debate issues which it chooses. The Speaker also represents Parliament on ceremonial occasions.
Commons, Lords and Speaker
House of Commons
Democratically elected MPs
More important chamber
PM and almost all cabinet members sit here
Can overrule the Lords
House of Lords
Peers are not elected by the people
Checks laws passed by the Commons
Life peers introduced in 1958
Hereditary peers lost automatic seats in 1999
Speaker
Chairs Commons debates
Neutral after election as Speaker
Chosen by MPs in a secret ballot
Keeps order and represents Parliament ceremonially
Do not mix up
Practise
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