Which of the following statements regarding plant cell structures is incorrect?
A. Plasmodesmata are channels that connect adjacent plant cells, facilitating communication and transport.
B. Chloroplasts are double-membrane organelles responsible for photosynthesis in plant cells.
C. Vacuoles are small membrane-bound structures that store water, nutrients, and waste products in plant cells.
D. The cell wall is a rigid layer surrounding the plasma membrane of plant cells, providing structural support and protection.