Final answer:
Microtubule minus ends face the cell body, so kinesin transports vesicles toward the axon terminal in neurons. This transport is crucial for delivering neurotransmitters to the nerve ending.
Step-by-step explanation:
Since microtubule minus ends face the cell body and kinesin is a motor protein that facilitates anterograde transport, kinesin transports vesicles toward the plus ends of microtubules, which are typically oriented away from the cell body and towards the cellular periphery. In neurons, for example, this direction would be towards the axon terminal. Thus, kinesin-mediated transport is essential for moving organelles, such as vesicles containing neurotransmitters, down the axon to the nerve ending.