24. What is the difference between pinocytosis and receptor-mediated endocytosis
(A) pinocytosis brings only water molecules into the cell, but receptor-mediated
endocytosis brings in other molecules as well
(B) pinocytosis increases the surface area of the plasma membrane, whereas receptor-
mediated endocytosis decreases the plasma membrane surface area.
(C) pinocytosis is nonselective in the molecules it brings into the cell, whereas
receptor-mediated endocytosis offers more selectivity
(D) pinocytosis can concentrate substances from the extracellular fluid, but receptor-
mediated endocytosis cannot