the Nucleolus is the second most important part of the cell. it acts like the president. The President doesn't make the final decisions, just like the Nucleolus.
membrane is the security because they allow people to enter and leave the building. the membrane alerts the plant about the waste that is going out of it.
The Golgi body is similar to the Cadillac one. The golgi body takes packages and transports them. just like the Cadillac one drives the president around.
The er (Endoplasmic reticulum) is like the judicial branch. the er is a network of membranes that produce different substances. the judicial branch is a group of courts that have different interpretations of the law.