like the walls of a castle, the cell membrane allows in things that are needed (like food) and allows out things that aren’t needed (like waste).  The cell membrane is the cell’s first line of defense to keep unwanted intruders out (like viruses!).

 Sort of like jelly, the cytoplasm is the cell’s internal environment and keeps the organelles from bumping into each other.

 Modifies and transports proteins from the E.R., as well as creation of lysosomes and transport of lipids.  The Golgi apparatus is like a factory, it builds and ships.

these sacs are full of enzymes for digesting food that come into the cell.

Like power plants, the mitochondria turn sugar into energy that’s usable by the cell.  Your house uses electricity, the cell uses a molecule called ATP.

Primarily makes ribosomes.  That’s all you need to know!

the mayor’s office of the cell.  Everything that happens in the cell is ultimately controlled by the nucleus and the DNA inside.   The lack of a nucleus is a easy way to tell that the cell you’re looking at is a prokaryote.