Which of the following best describes how mitochondria reach the presynaptic endings of nerve cells?
A) ameboid migration down the axon from the neuronal cell body
B) assembly within the presynaptic ending from cytoplasmic lipids, amino acids, and other small molecules
C) assembly within the presynaptic ending using recycled presynaptic membranes
D) diffusion down the axon from the neuronal cell body
E) transport down the axon from the neuronal cell body along the microtubules

Question

Quizplus · Accepted Answer

Mitochondria are transported down the axon from the neuronal cell body along microtubules using motor proteins like kinesin. Microtubules are filamentous intracellular structures that are responsible for various kinds of movements in all eukaryotic cells. Microtubules are involved in nuclear and cell division, organization of intracellular structures, and intracellular transport, as well as ciliary motility. Mitochondria have been shown to migrate inside cells, such as axonal movement, via the interaction with microtubules.

Which of the Following Best Describes How Mitochondria Reach the Presynaptic