Final answer:
Chloroplast is the organelle found in photosynthetic organisms that captures energy from the sun.
Step-by-step explanation:
The organelle found in photosynthetic organisms that captures energy from the sun is chloroplast. Chloroplasts contain a green pigment called chlorophyll, which captures the light energy that drives the reactions of photosynthesis. These organelles are responsible for converting sunlight, water, and carbon dioxide into glucose, which is used as food by the plant. Chloroplasts are unique to photosynthetic organisms and play a crucial role in their survival.