IB Biology HL 2.1.5 Spontaneous Formation of Vesicles
Practise IB Biology HL 2.1.5 by evaluating membrane boundaries, protobiont features and the organisation of early cell-like systems.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Identify the plasma membrane as an early boundary and state one feature of a protobiont.
- Evaluate whether a proposed vesicle has the compartmentalisation expected before true cells.
A2.1.5—Spontaneous formation of vesicles question 1
[Maximum number: 1]
State the name for primitive, phospholipid-enclosed structures that may have preceded cells.
protobionts/protocell
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