A2.1.5—Spontaneous formation of vesicles Topic Practice
A2.1.5—Spontaneous formation of vesicles Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Practise linking early cell origins to phospholipid vesicles, plasma membranes and primitive protocell structures in short-answer and MCQ tasks.
How this is tested
- state the primitive phospholipid-enclosed structures that may have preceded cells
- identify the plasma membrane as an early cell component in origin-of-life MCQs
- link vesicle formation to the first boundary around simple cell-like structures
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