Which Statement(s) Is/are True? (Select All That Apply.)

Multiple Choice

Which statement(s) is/are true? (Select all that apply.)

A) The space between the presynaptic and postsynaptic neuron is empty.
B) The extracellular matrix resides in the postsynaptic neuron.
C) Receptors and scaffolding proteins are located in the post synaptic density.
D) When the post-synaptic neuron depolarizes positive ions enter the cell.
E) When the post-synaptic neuron depolarizes negative ions enter the cell.