Cell structure Description Function Cell type Cell wall Freely permeable layer surrounding cell membrane. The cell wall of plant cells is made from cellulose. This gives them a rigid structure.

In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier ... Eukaryotic cells use three major processes to transform the ...

Cell membrane Allows gases and water to diffuse freely into and out of the cell. Controls the transport of other molecules. Mitochondrion (plural is mitochondria) Contains enzymes for the ...

Lysosomes are membrane-bound organelles in cells that act as recycling centers—breaking down waste materials, damaged ...