Politics of the United Kingdom
The UK Parliament is the supreme legislative body in the United Kingdom (i.e., there is parliamentary sovereignty), and Government is drawn from and answerable to it. Parliament is bicameral, consisting of the House of Commons and the House of Lords. There is also a devolved Scottish Parliament and devolved Assemblies in Wales and Northern Ireland, with varying degrees of legislative authority.
Constitution of the United Kingdom
Parliament is bicameral, with two houses — the House of Commons and the House of Lords; the monarch formally forms a third element of Parliament (see Queen-in-Parliament). The House of Commons, which unlike the House of Lords is democratically elected, has supremacy by virtue of the Parliament Act 1911 and Parliament Act 1949. An Act of Parliament of the United Kingdom is primary legislation and Parliament can (and does) alter the British constitution by passing such Acts.