Retrograde transport:
A. Recycles substances from the axon back to the soma.
B. Moves neurotransmitters from the dendrites to the cell body.
C. Moves substances from the soma toward the axon terminal.
D. Moves neurotransmitters across the synaptic cleft.
E. Moves information from astrocyte to astrocyte.
ANS: A
Rationale: Axoplasmic transport occurs in two directions: anterograde and retrograde. Anterograde transport moves neurotransmitters and other substances from the soma down the axon toward the presynaptic terminal. Retrograde transport moves substances from the synapse back to the soma.
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