Question 7 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC
The shoebox represents the cell wall, a rigid outer structure found in plant cells but not animal cells. The water-filled balloon is like a plant cell’s large central vacuole, which stores water. The marbles can represent ribosomes, which are tiny structures found in cells. So the best choice is the plant cell with the box as the cell wall, the balloon as the large vacuole, and the marbles as ribosomes.
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