The process where a cell uses vesicles to move molecules out of the cell is called exocytosis.

Here's how it works:

1. Packaging: Molecules destined for export are packaged into membrane-bound vesicles within the cell.

2. Transport: These vesicles travel through the cytoplasm towards the cell membrane.

3. Fusion: The vesicle membrane fuses with the cell membrane.

4. Release: The contents of the vesicle are released outside the cell.

Exocytosis is essential for a variety of cellular functions, including:

* Secreting hormones and neurotransmitters: Cells use exocytosis to release signaling molecules that communicate with other cells.

* Exporting waste products: Cells can get rid of unwanted substances through exocytosis.

* Building cell walls: Plant cells use exocytosis to transport materials needed to build their cell walls.

Let me know if you have any other questions!