Describe the structure of the European Union

What will be an ideal response?

Five EU institutions play particularly important roles in monitoring and enforcing economic and political integration.
European Parliament-The European Parliament consists of 736 members elected by popular vote within each member nation every five years. As such, they are expected to voice their particular political views on EU matters. The European Parliament fulfills its role of adopting EU law by debating and amending legislation proposed by the European Commission. It exercises political supervision over all EU institutions–giving it the power to supervise commissioner appointments and to censure the commission. It also has veto power over some laws (including the annual budget of the EU). There is a call for increased democratization within the EU, and some believe this could be achieved by strengthening the powers of the Parliament. The Parliament conducts its activities in Belgium (in the city Brussels), France (in the city Strasbourg), and Luxembourg.
Council of the European Union-The council is the legislative body of the EU. When it meets, it brings together representatives of member states at the ministerial level. The makeup of the council changes depending on the topic under discussion. For example, when the topic is agriculture, the council is composed of the ministers of agriculture from each member nation. No proposed legislation becomes EU law unless the council votes it into law. Although passage into law for sensitive issues such as immigration and taxation still requires a unanimous vote, some legislation today requires only a simple majority to win approval. The council also concludes, on behalf of the EU, international agreements with other nations or international organizations. The council is headquartered in Brussels, Belgium.
European Commission-The commission is the executive body of the EU. It comprises commissioners appointed by each member country–larger nations get two commissioners, smaller countries get one. Member nations appoint the president and commissioners after being approved by the European Parliament. It has the right to draft legislation, is responsible for managing and implementing policy, and monitors member nations' implementation of, and compliance with, EU law. Each commissioner is assigned a specific policy area, such as competitive policy or agricultural policy. Although commissioners are appointed by their national governments, they are expected to behave in the best interest of the EU as a whole, not in the interest of their own country. The European Commission is headquartered in Brussels, Belgium.
Court of Justice-The Court of Justice is the court of appeals of the EU and is composed of 27 judges (one from each member nation) and eight advocates general who hold renewable six-year terms. One type of case that the Court of Justice hears is one in which a member nation is accused of not meeting its treaty obligations. Another type is one in which the commission or council is charged with failing to live up to its responsibilities under the terms of a treaty. Like the commissioners, justices are required to act in the interest of the EU as a whole, not in the interest of their own countries. The Court of Justice is located in Luxembourg.

Court of Auditors-The Court of Auditors comprises 27 members (one from each member nation) appointed for renewable six-year terms. The court is assigned the duty of auditing the EU accounts and implementing its budget. It also aims to improve financial management in the EU and report to member nations' citizens on the use of public funds. As such, it issues annual reports and statements on implementation of the EU budget. The court employs roughly 800 auditors and staff to assist it in carrying out its functions. The Court of Auditors is based in Luxembourg.