IB Biology HL 2.2.12 Exogenous chemicals Question Bank
Practise IB Biology HL 2.2.12 by applying exogenous chemicals 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
C2.2.12 (HL)—Exogenous chemicals question 1
Cholinergic synapses use acetylcholine as their neurotransmitter. They are widespread in the body, passing on signals to muscle cells. These synapses are affected by neonicotinoid pesticides.
The diagrams, which are not drawn to scale, show the synapse between two neurons and a detail of the synaptic cleft.
On the diagrams, label:
On the diagrams, label with a letter P a location where a neonicotinoid pesticide could bind.
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