Question

What is it called when vesicles are used to move substances out of the cell?

Answer 1

Exocytosis.

Explanation:

Exo- means outside, -cyte means cell, and -osis means a process of or condition. So exocytosis is the process of moving materials outside the cell.

In the illustration below, notice that the membrane of the vesicle fuses with the cell membrane, which creates a temporary opening in the cell membrane in order for the material be exit the cell.