The cell membrane, nucleus, and cytoplasm.
Here is a song I learned to help you remember:
“Cells, cells, there made of organelles.
Try and pull a fast one the cytoplasm gels.
The nucleus takes over, controlling everything,
The party doesn’t stop till the membrane blocks the scene!
Incide the vacuole, we be floating around for hours,
Something bout’ cloraplast and sunlight showers!”
Hope this helps :)