Question 1 · 1 mark · Difficulty 1/3
What is the role of phagocytes in the immune system?
- Produce antibodies
- Engulf and digest pathogens by surrounding them (phagocytosis)
- Carry oxygen
- Produce antitoxins only
Show answer & explanation
✓ Answer: B — Engulf and digest pathogens by surrounding them (phagocytosis)
Phagocytes are white blood cells that detect, engulf, and digest pathogens. They are a non-specific defence — they attack any foreign invader.