Phagocytosis differs from endocytosis in that with phagocytosis
A)the plasma membrane invaginates to produce a furrow that pinches off inside the cell.
B)the plasma membrane extends outwards with pseudopods to surround the substance.
C)specific membrane receptors bind to the molecules to be brought into the cell.
D)None apply.

Question

Quizplus · Accepted Answer

Phagocytosis involves the plasma membrane extending outwards with pseudopods to surround and engulf large particles or entire cells, while endocytosis involves the plasma membrane invaginating to produce a furrow that pinches off inside the cell to bring in smaller molecules or particles. Option A describes pinocytosis, not phagocytosis. Option C describes receptor-mediated endocytosis, which is a type of endocytosis, not phagocytosis. Therefore, the correct answer is B. Option D is incorrect because at least one of the options applies.

Phagocytosis Differs from Endocytosis in That with Phagocytosis