North Rhine-Westphalia Zentralabitur Biology Practice Questions - North Rhine-Westphalia Zentralabitur Biology (Biologie) Exam

At a chemical synapse, what triggers neurotransmitter release into the synaptic cleft?

Ca2+ influx into the presynaptic terminal triggering vesicle fusion Direct electrical current jumping the gap K+ efflux from the postsynaptic cell Glucose diffusion into the presynaptic terminal

Correct Answer:

Ca2+ influx into the presynaptic terminal triggering vesicle fusion

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