IB Biology HL 2.1.2 Quorum sensing in bacteria Question Bank
Practise IB Biology HL 2.1.2 by applying quorum sensing in bacteria concepts to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- identify the relevant biological structure, process or evidence
- apply the correct biological mechanism to the question
- evaluate the result using data, adaptation or ecological reasoning
C2.1.2 (HL)—Quorum sensing in bacteria question 1
[Maximum number: 2]
State, giving one specific example, how individual bacteria change their characteristics when they form aggregates.
F2. (a) a. example;
b. change;
e.g.:
a. Vibrio fischeri;
b. emit light when part of high density population/high concentration of regulatory substance;
Marking guidance:
Accept other verifiable example.
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