The organelle in a plant cell that uses sunlight, carbon dioxide, and water to make glucose is the chloroplast.

This process is called photosynthesis, and it's the foundation of life on Earth. Here's a simplified breakdown:

* Sunlight: Provides the energy for the reaction.

* Carbon dioxide: Taken in from the air.

* Water: Absorbed from the soil through roots.

* Chloroplast: Contains chlorophyll, a pigment that captures light energy.

* Glucose: A simple sugar that provides energy for the plant.

* Oxygen: A byproduct of photosynthesis, released into the atmosphere.

Let me know if you'd like to explore photosynthesis in more detail!