Question

What structure is found in all cells that encloses the cell to form the outside?

Answer 1

I'm pretty sure it's the cell membrane or cell wall

Answer 2

That's called the cell membrane. It encloses both prokaryotic, eukaryotic, plant and animal cells.

In the case of eukaryotic cells, it is the outermost layer, in the case of prokaryotic cells, it is not.

Hope it helped,

BioTeacher101