Plant cells have a rigid cell structure. They are made up of a cell wall, cell membrane, cytoplasm, vacuole, nucleus, and chloroplasts. Plants feel firm because of their cellular walls.

The Cytoplasm of the Plant Cell By Prof. Alexandre Guilliermond. Authorised translation from the unpublished French manuscript by Dr. Lenette Rogers Atkinson. (A new Series of Plant Science Books ...

A look at the cells of different organisms and a comparison of the structures found in plant and animal cells. All animal cells are surrounded by a membrane which contains the cytoplasm.