The Golgi apparatus is an important part of the endomembrane system that packages materials received from the endoplasmic reticulum. Evaluate the two statements below on its structure.

• Statement I: The Golgi apparatus consists of many flat, disc-shaped sacs called cisternae, which are stacked parallel to each other and concentrically arranged near the nucleus.
• Statement II: The Golgi cisternae have a convex cis face, called the forming face, and a concave trans face, called the maturing face; the two faces are entirely different but interconnected.