Assuming that the centrosome is near the cell center, you can predict that these vesicles are moving to the end of microtubules using the motor protein

Minus; dynein

Explanation:

Phagocytosis is a form of endocytosis by which specialized cells (phagocytes) defend the body against pathogens.

A continuous turnover of the microtubule network occurs in a cell. The half-life of an individual microtubule is 10 minutes, while the half-life of a tubulin molecule, from its synthesis to its proteolytic degradation, is more than 20 hrs. Thus each tubulin molecule participates in the formation and dismantling of many microtubules during their life period. The individual microtubules grow towards the cellular periphery at a constant rate for a certain period of time and then suddenly shorten rapidly towards the centrosome.