Final answer:
Proteins in the Golgi apparatus are transported from one cisterna to the next using transport vesicles. These vesicles bud from one cisterna and fuse with the next, allowing the proteins to be moved along the Golgi stack.
Step-by-step explanation:
The proteins in the Golgi apparatus are transported from one cisterna to the next using transport vesicles. These vesicles bud from one cisterna and then fuse with the next, allowing the proteins to be moved along the Golgi stack. The proteins undergo further modifications and sorting as they travel through the Golgi, ensuring that they are delivered to their proper destinations.