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IB Biology HL 2.2.5 Synapses as junctions Question Bank

Practise IB Biology HL 2.2.5 by relating calcium channels, neurotransmitter breakdown and postsynaptic receptors to one-way synaptic transmission.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Relate presynaptic calcium channels, neurotransmitter breakdown and postsynaptic receptors to one-way transmission.
  • Interpret synapse diagrams and receptor evidence to identify structures and explain how acetylcholine is cleared.

C2.2.5—Synapses as junctions question 1

[Maximum number: 1]

The diagram shows part of two neurons.

Figure for Question C2.2.5—Synapses as junctions question 1 — IB Biology HL

State the name of the structure shown.

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