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IB Biology HL C2.2.5 Synapses As Junctions Questions

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

  • Explain one-way chemical synaptic transmission from presynaptic calcium entry and vesicle release to postsynaptic receptor activation.
  • Identify the fate of acetylcholine after receptor binding, including its breakdown in the synaptic cleft.
  • Identify the synaptic junction structure shown in a neuron diagram.
  • Label a neurotransmitter receptor on a synapse diagram.

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Study C2.2.5—Synapses as junctions conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL C2.2.5 Synapses As Junctions Questions question 1

[Maximum number: 1]

The diagram shows part of two neurons.

Figure for Question IB Biology HL C2.2.5 Synapses As Junctions Questions question 1 — IB Biology HL

State the name of the structure shown.

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