A chloroplast is a tiny structure inside plant and algae cells where photosynthesis happens, turning sunlight, water, and carbon dioxide into food. It contains chlorophyll, the green pigment that captures light energy.
“Chloroplast” combines Greek “khlōros,” meaning “green,” and “plastos,” meaning “formed” or “molded.” It literally means “green body” or “green form” in the cell.
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