Origin of cell wall
Examples from the Web for cell wall
The cell is frequently, but by no means always, bounded by a cell-wall of greater or less thickness.
Many diatoms possess thickenings of the cell-wall, visible in the valve view, in the centre of the valve and at each extremity.
During this examination, it will be noticed that the surface of the cell-wall is striated with fine wrinkles.
Two contiguous cells of two parallel filaments push each a little projection from its cell-wall toward the other.
In the latter case, it forms an inner cell to the cell-wall, and is called the primordial utricle.