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Cam plants close during the night and open during the day because they are photosensitive and respond to light. To do it experimentally, try with a torch for some time.
Cam plants close during the night and open during the day because they are photosensitive and respond to light. To do it experimentally, try with a torch for some time.
stomata
Stomata close during the night because the water will evaporate ( they do this to conserve water).
The guard cells of non desert plants simply contract a bit but do not close. Desert plants close their guard cells.
stomata only open during the day and close at night becasue plants only photosynthesis during the day cos they need the sun which isn't visible at night.
Plants that grow in arid environments have CAM pathway for photosynthesis. This means that the plants open their stomata at night time and close them during the day (more tropical plants are the reverse - open stomata during the day and close at night) so less water is lost due to evaporation in the heat of the day.
no plants close at night making it hard to produce food
Many plants, called C3 and C4 plants, open their stomas during the day to let in carbon dioxide to instigate the process of cellular respiration. However some plants called CAM plants open their stomas at night. The main reason for this process is due to the physical environment the plants are located in. The majority of CAM plants are located in hot, dry and desert environments where water is scarce. As a result the CAM plants evolved so that they could close their stomas during the day and open them at night, to help retain water, at night the plants can still absorb CO2. Some examples of CAM plants are, cacti, pineapples, and aloe.
In desert plants, the stomata is open during night. During night, desert plants (also called xerophytes) absorb co2 and form an intermediate. Then during day time when the stomata is closed to prevent loss of water, they use this stored carbon dioxide to perform photosynthesis.
Pretty sure its night. During the day plants need more water because the sun is out.
At night, the leaves of C3 plants close their stomata and wait until the sunlight. For CAM plants, this is when the plants open their stomata and allow the carbon dioxide to come in.