Figure 4.13 Lysosomes Isolate Digestive Enzymes from the Cytoplasm

Outside of cell

Plasmamembrane

Inside of cell

Golgiapparatus

The primary lysosome is generated by the Golgi.

Secondarylysosome

The lysosome fuses with a phagosome.

Products ofdigestion

Small molecules generated by digestiondiffuse into the cytoplasm.

Undigested materials are released when the digestion vesiclefuses with the plasma membrane.

Food particlestaken in byphagocytosis

Primarylysosome

Phagosome