So water will flow as a result of osmosis into that cell. And as the water from the outside flows into the inside, that increases the hydrostatic pressure inside our bacterial cell. And what the cell wall actually does as our hydrostatic pressure increases, as the turger pressure increases, that cell wall is basically able to resist that increase in hydrostatic pressure. And so, if that cell wasn't there, as our osmosis takes place and more and more water flows into that cell, that cell would eventually burst if it actually did not contain that cell wall. So the cell wall of bacterial cells basically functions to withstand the hydrostatic pressure that exists inside our cell. Now, in bacterial cells, the cell wall is made of a special type of molecule known as Peptidoglycan.