Both the cell membrane and the cell wall act to protect the organelles within a cell. Which of the following best describes how the cell membrane is different from the cell wall? A. The cell membrane is a single-layered membrane, while the cell wall is a double-layered membrane.
B. The cell membrane is made of a tough cellulose fiber, while the cell wall is made of a flexible glycogen fiber.
C. The cell membrane only controls what crosses into the cell, and the cell wall only maintains a cell's rigidity.
D. The cell wall is only found in plant cells, while the cell membrane is found in plant and animal cells.