Which house of the english parliament is made up of member who are elected?

I assume you are talking about the UK Parliament. The House of Commons is made up entirely of elected representatives; the House of Lords is made up of a combination of members of the Peerage, some of whom are hereditary and some of whom are 'life peers', i.e. people who have been ennobled by the monarch but who cannot pass their title down through their family. Other members of the Lords include the countrie's top judges, the countrie's top archbishops, and very senior members of the military top brass.