In plant tissue, what primary function does the cell wall serve for a plant cell?

• A. Stores genetic information and controls gene expression
• B. Provides structural support and protection, helping maintain cell shape and resist osmotic swelling
• C. Produces ATP through oxidative phosphorylation
• D. Regulates selective transport of ions and molecules as the main permeability barrier

Answer: (B)

Verified step by step guidance

1. Identify the main components of a plant cell and their functions to understand the role of the cell wall.
2. Recall that the cell wall is a rigid layer outside the plasma membrane, primarily composed of cellulose, hemicellulose, and pectin.
3. Understand that the cell wall provides mechanical strength, which helps the plant cell maintain its shape and prevents it from bursting when water enters by osmosis.
4. Recognize that the cell wall also acts as a protective barrier against physical damage and pathogens.
5. Differentiate the cell wall's function from other organelles: it does not store genetic information (nucleus), produce ATP (mitochondria), or regulate selective transport (plasma membrane).