A-LevelBiologyControl and coordinationMay/June 2023Paper 4 Q98 Marks
(a) Dopamine is a neurotransmitter released in some synapses in the brain. The release and action of dopamine is similar to that of acetylcholine. Fig. 9.1 is a diagram of a brain synapse where dopamine is the neurotransmitter. dopamine vesicle presynaptic membrane iir postsynaptic membrane Fig. 9.1
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