Question

reuptake refers to the * 2 points
movement of neurotransmitter molecules across a synaptic gap
reabsorption of excess neurotransmitter molecules by a sending neuron
the ending of refractory period
inflow of positively charged ions through an axon membrane

opiate drugs occupy the same receptor sites as * 2 points
endorphins
acetylcholine
serotonin
dopamine

Explanation:

Reuptake is the process where a sending neuron reabsorbs excess neurotransmitter molecules. Opiate drugs mimic endorphins and occupy the same receptor sites as they have similar chemical - like structures.

Answer:

1. reabsorption of excess neurotransmitter molecules by a sending neuron
2. endorphins