Final answer:
The endomembrane system includes the nuclear envelope, endoplasmic reticulum (ER), Golgi apparatus, lysosomes, vesicles, and the plasma membrane. Mitochondria are not part of the vesicular system.
Step-by-step explanation:
The endomembrane system is a group of cellular components found inside the cell that work together to modify, package, tag, and transport membrane lipids and proteins. It includes the nuclear envelope, endoplasmic reticulum (ER), Golgi apparatus, lysosomes, vesicles, and the plasma membrane. However, the component not included in the vesicular system is mitochondria. Mitochondria are responsible for producing energy in the cell through cellular respiration, but they are not part of the endomembrane system.