Mechanism of Synaptic Transmission — Prelims Questions

Which of the following events occurs earliest during chemical synaptic transmission?

Which of the following neurotransmitters is primarily inhibitory in the central nervous system by opening chloride ion channels?

Which of the following statements about postsynaptic potentials (PSPs) is INCORRECT?

Which mechanism is NOT involved in the termination of neurotransmitter action in the synaptic cleft?

If a drug blocks voltage-gated calcium channels in the presynaptic terminal, what would be the immediate effect on synaptic transmission?

Which of the following statements best describes the 'synaptic delay' in chemical synapses?