Final answer:
Chloroplast converts light and carbon dioxide to usable energy, cell wall provides structural support and protection, nucleus controls functions of the cell, and vacuole maintains the shape of the cell.
Step-by-step explanation:
Chloroplast: converts light and carbon dioxide to usable energy.
Cell wall: provides structural support and protection.
Nucleus: controls functions of the cell.
Vacuole: maintains the shape of the cell.
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