does photosynthesis occur at night? how? and can you give an example?
Plants that employ Craculacean acid metabolism, generally referred to as CAM photosynthesis, perform an essential part of their photosynthesis at night. These plants are typically found in the desert or in other situations where water maintenance is vital so they actually keep their stomata closed during the day to prevent water loss. This also prevents photosynthesis from occurring during the day fully so they have to open the stomata at night in order to collect the requisite carbon dioxide to facilitate the photosynthesis that will occur during the day.
The Jade plant is one example of a plant that employs CAM photosynthesis.