Chloroplast is an eukaryotic organelles that might have evolved from small independent green prokaryotes that took up residence in a bigger prokaryotic cells.
Chloroplast is the cell organelle that is present only in green plants and some fungi that can make their own food. Chloroplast are believed to be evolved from prokaryotes and are called semi-autonomous because they have their own DNA which can make some of the proteins needed by the organelle.
Prokaryotes are the organisms that have the primitive type of cell with no true nuclei. Instead their genetic material lies as an aggregate in the cytoplasm itself and is called nucleoid.
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