Apoplast
The space outside the protoplasts in a plant tissue is called apoplast . The apoplast consists of the entirety of all cell walls and the intercellular space . It is an important place for reactions and storage in the tissue.
As a technical term for the apoplast, among other things, the expression AFS - apparent free space ("apparently free space") is known.
In contrast to the apoplast is the symplast .