IB Biology SL C2.2.6 Neurotransmitter release
IB Biology SL C2.2.6 Neurotransmitter release
Practise describing neurotransmitter release from presynaptic neurons after an arriving impulse triggers calcium movement.
How this is tested
- explain how an action potential opens calcium channels in the presynaptic membrane
- describe vesicle movement, membrane fusion and neurotransmitter release by exocytosis
- use synapse diagrams to label the presynaptic membrane and vesicle contents accurately