Instructions: Given a scientific passage and an answer, generate a question for the given answer.
Input: Passage: Exocytosis is the type of vesicle transport that moves a substance out of the cell. A vesicle containing the substance moves through the cytoplasm to the cell membrane. Then, the vesicle membrane fuses with the cell membrane, and the substance is released outside the cell. You can watch an animation of exocytosis at the link below. Answer: exocytosis
Output:
The type of vesicle transport that moves a substance out of the cell is called?