The nucleus is the control centre of the cell so the town hall or the police station might work.
The cell wall could relate to the outer limits of a city, or even a city wall.
Ribosomes are similar to small factories.
As for The lysosome, A landfill site or dump could work here.
A vacuole is where the cell stores sap. A warehouse in particular a food storage warehouse would be a good comparison.
The chloroplast would be close to A food production factory or a farm.
For The cell membrane, you could use Immigration control at the city airport..
The endoplasmic reticulum basically compares to a factory.
Mitochondria are the powerhouses of the cell, aka a power station.
Finally the golgi body is where proteins are modified and distributed. Some kind of distribution centre where goods are sent to shops would work
