C4 Photosynthesis

C4 photosynthesis is a process of carbon fixation used by some plant species to improve their efficiency of light and water use. In this process, carbon dioxide is first converted into a four-carbon molecule within the cell, which is then transported to the chloroplasts for further reaction. This step helps to concentrate the CO2 around the reaction center and reduce photorespiration. C4 photosynthesis is particularly beneficial in areas of high light and heat stress, such as tropical and subtropical regions, as it increases photosynthetic efficiency. Thus, this process plays an important role in crop production and the mitigation of global climate change.