Microscopy Techniques and Results

The primary cell wall of a plant cell is relatively thick and rigid.

Fungi and some protists do not have cell walls.

Plasmodesmata are channels between adjacent animal cells.

The extracellular matrix (ECM) of animal cells is made up of cellulose fibers.

Plant cell walls are composed of protein embedded in polysaccharides and cellulose fibers.

The middle lamella is a thick layer between the primary walls of adjacent plant cells.

The secondary cell wall is a characteristic of all plant cells.

The cell wall of a plant cell prevents excessive loss of water.

The plasma membrane is located outside the primary cell wall of a plant cell.

The extracellular matrix (ECM) of animal cells is responsible for maintaining cell shape.