Membrane bound organelles that contain digestive enzymes. Chloroplasts are only found in plants and algae. This organelle contains many oxidation enzymes and the enzyme hydrogen peroxidase. It gives cells their shape and it allows cells to move internal organelles and other structures around. Many eucaryotic cells use their cytoskeleton to project pseudopods outward in order to catch and phagocytose another cell.
Prokaryotes never have cytoskeletons.