Final answer:
Secretory vesicles are formed in the Golgi apparatus, following initial processing in the endoplasmic reticulum.
Step-by-step explanation:
Vesicles involved in the process of secretion originate from the Golgi apparatus. The endoplasmic reticulum (ER) plays a crucial role in the synthesis and transport of proteins, where they are initially shaped and then transported in vesicles to the Golgi apparatus. The Golgi apparatus then modifies, sorts, packages, and tags these proteins, ensuring they reach their intended destination, whether that's within the cell or exported out of the cell through the process of exocytosis.The vesicles involved in secretion originate from the Golgi apparatus. The Golgi apparatus is responsible for sorting, modifying, and packaging proteins and lipids that are synthesized in the endoplasmic reticulum. These modified substances are then packaged into vesicles and transported to their final destination within or outside the cell.