How lysosomes show polymorphism.Explain

Lysosome is called polymorphic organelle because it can occur in more than one form inside the cell. Lysosomes  are  small, membrane-bound organelles that originate from the Golgi apparatus in animal cells.  There are four types of lysosomes depending upon their morphology and function:
(a) Primary lysosomes: They are newly pinched off vesicles from the Golgi apparatus which fuse with some endosome to become fully functional. These are small in size and contain hydrolytic enzymes in the form of granules.
(b) Secondary lysosomes: They are also called digestive vacuoles. A secondary lysosome is formed by the fusion of food containing phagosome with lysosome. Digestion occurs and the digested food passes out into the cytoplasm. Finally, the secondary lysosome is left with undigested food.
(c) Residual bodies: They are those lysosomes in which only indigestible food materials have been left. The residual bodies or lysosomes pass outwardly and fuse with the plasma membrane to throw out the debris into external environment by exocytosis.
(d) Autophagic vacuoles: They are produced by the fusion of a number of primary lysosomes around worn out or degenerate intracellular organelles.