Asked by Federico Maeso on May 16, 2024
Verified
What method does a human white blood cell employ to engulf a bacterial cell?
A) Osmosis
B) Exocytosis
C) Pinocytosis
D) Phagocytosis
E) Facilitated diffusion
Phagocytosis
The process by which cells engulf large particles or microorganisms, breaking them down within phagosomes, contributing to cellular defense and nutrient acquisition.
Pinocytosis
A form of endocytosis in which a cell engulfs liquid substances from its surroundings, forming small vesicles.
Osmosis
The movement of water molecules through a semipermeable membrane from a less concentrated solution to a more concentrated one.
- Explain the mechanisms of endocytosis and exocytosis and their importance in cell functions.
Verified Answer
EF
Erick FrankeMay 21, 2024
Final Answer :
D
Explanation :
Phagocytosis is the process by which certain living cells called phagocytes ingest or engulf other cells or particles. Human white blood cells (leukocytes) use phagocytosis to engulf and destroy bacteria, dead cells, and other foreign materials.
Learning Objectives
- Explain the mechanisms of endocytosis and exocytosis and their importance in cell functions.