IB Biology HL C3.2.5 Phagocytes Questions
Explore how phagocytes migrate from blood, engulf pathogens and use lysosomal enzymes for non-specific defence in IB Biology HL C3.2.5.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Explain how phagocytes use chemotaxis to leave the bloodstream and reach infected tissues where pathogens or foreign material are detected.
- Explain phagocytosis as membrane engulfment into a vacuole followed by lysosomal-enzyme digestion and destruction of the pathogen as a non-specific defence.
IB Biology HL C3.2.5 Phagocytes Questions question 1
[Maximum number: 1]
What action(s) can phagocytes perform?
I. Make antibodies
II. Leave the blood stream and enter infected tissues
III. Kill pathogens that they have engulfed
A
I only
B
III only
C
II and III only
D
I, II, and III
C
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