Chloroplasts are specialized organelles found in plant cells that are responsible for conducting photosynthesis. They are characterized by their high concentration of chlorophyll, which allows them to convert light energy into chemical energy. Chloroplasts carry out a number of other functions, including fatty acid synthesis, some amino acid synthesis, and the immune response in plants. Chloroplasts, along with the nucleus, cell membrane, and endoplasmic reticulum, participate in the plant immune response. They also make all of the cells purine and pyrimidines and convert nitrite into ammonia, which supplies the plant with nitrogen. Chloroplasts are highly dynamic, they circulate and are moved around within plant cells and occasionally pinch into two to reproduce.
In summary, the main function of chloroplasts in a plant cell is to conduct photosynthesis, which involves converting light energy into chemical energy.
