The nucleolus is like the police officers, because they monitor the prisoners. The nucleolus makes/monitors ribosomes, which have already been compared to prisoners.
(image from http://micro.magnet.fsu.edu/)
A prison cell holds a prisoner like the golgi body packages the proteins.
(image from www.buzzle.com)
The cell wall is like the wall around the prison. Its hard to get through and surrounds the membrane.
(image from buzzle.com)
Cytoplasm is like the prison yard. It is where all the activities occur.
(image from daylillies.org)
The
chromatin is like the filing cabinets with the prisoners rehabilitation papers. Chromatin holds the DNA.
(image from wikapedia.com)
The nuclear pore is like the retinal scan at the
door of the guardroom, only those with clearance can get into the room.
(image from buzzle.com)
Cilia and flagella are like the trucks that transport the prisoners to and from jail, because cilia and flagella are used for movement.
(image from biologydiscussion.com)
The lysosomes are like the janitorial staff that
cleans up after the prisoners because lysomes clean up the waste.
(image from http://www.biology4kids.com/)
Cytoskeleton are like the CEOs who make the rules. They both provide structure in the cell/prison.