Which one of the following statements concerning endocytosis is NOT TRUE?
Select one:
a. Cells may employ endocytosis to ingest large polar molecules (macromolecules) from extracellular fluid.
b. In endocytosis, the cell membrane often extends outward until it surrounds the material that will be ingested.
c. Endocytosis is a natural process of intracellular digestion for nutrition.
d. Endocytosis is the process by which phagosomes are released by the cell to expel the macromolecules inside.