Question

what is the main function of the cell wall in a plant cell?
to make proteins

to break down sugar and release energy that the cell can use

to give strength and stiffness to the cell

to use energy from sunlight to make sugar

Explanation:

• Analyze each option:
• "To make proteins" is the function of ribosomes, not the cell wall.
• "To break down sugar and release energy" is the function of mitochondria (cellular respiration).
• The cell wall in plant cells is made of cellulose and provides structural support, giving strength and stiffness to the cell.
• "To use energy from sunlight to make sugar" is the function of chloroplasts (photosynthesis).

Answer:

The option "to give strength and stiffness to the cell" (the third option in the list)