Question

which process occurs when large particles are engulfed by the cell? a) exocytosis b) diffusion c) phagocytosis d) osmosis

Explanation:

• Option A: Exocytosis is the process of a cell releasing substances (not engulfing), so A is incorrect.
• Option B: Diffusion is the movement of particles from high to low concentration (passive, for small molecules), not for engulfing large particles, so B is incorrect.
• Option C: Phagocytosis is the process by which cells engulf large particles (like bacteria, debris) by extending pseudopods to surround and internalize them, matching the question's description.
• Option D: Osmosis is the diffusion of water across a semi - permeable membrane, not related to engulfing large particles, so D is incorrect.

Answer:

C) Phagocytosis