A structure within a green plant cell in which photosynthesis occurs. Chloroplasts are distinguished by their green color, which results from the presence of two pigments, chlorophyll a and chlorophyll b. A function of these pigments is to absorb light energy, which is converted to chemical energy during the process of photosynthesis.


chloroplasts [cite]

Attribution- By Kristian Peters -- Fabelfroh (photographed by myself) [GFDL ( or CC-BY-SA-3.0, via Wikimedia Commons