Q What are the two major types of endocytosis?

Endocytosis is the entry of material in the cell engulfed by portions of the cell membrane.

Endocytosis can be classified as phagocytosis or pinocytosis. In pinocytosis small particles on the exterior surface of the membrane stimulate the invagination of the membrane inwards and vesicles full of that particles then detach from the membrane and go through the cytoplasm. In phagocytosis bigger particles on the exterior surface of the membrane induce the projection of pseudopods outwards enclosing the particles; the vesicles then detaches from the membrane and go into the cytoplasm receiving the name phagosome.