Question

by which method does the following occur: movement of large particles, bacteria, or cellular debris into the cell by endocytotic vesicles?
options: receptor - mediated endocytosis, pinocytosis, diffusion, phagocytosis, osmosis, i dont know yet

Explanation:

To solve this, we analyze each option:

• Receptor - mediated endocytosis: Involves specific molecules binding to receptors, not large particles/bacteria/debris in general.
• Pinocytosis: Uptake of fluid and small solutes, not large particles.
• Diffusion: Movement of small molecules down concentration gradient, no vesicles.
• Phagocytosis: Process where cells engulf large particles (like bacteria, cellular debris) via endocytotic vesicles.
• Osmosis: Movement of water across a membrane, no vesicles or large particles.

Answer:

D. Phagocytosis