In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
Plants that fix CO2 into organic acids at night when the stomata are open and carry out the Calvin cycle during the day when the stomata are closed are called CAM (Crassulacean Acid Metabolism) plants. CAM plants have adapted their carbon fixation process to avoid water loss during the day by keeping stomata closed, and perform photosynthesis during the night when conditions are cooler and less water loss occurs.
It seems there might be a misunderstanding in the phrasing of your question. In most plants, stomata open to facilitate gas exchange during photosynthesis, allowing carbon dioxide to enter for the Calvin-Benson cycle. This cycle occurs in the chloroplasts where CO2 is converted into glucose using ATP and NADPH produced in the light-dependent reactions. Stomatal regulation is crucial for balancing gas exchange and water loss, impacting the efficiency of photosynthesis.
Their stomata during the day!.
generally xerophytic plants have sunken stomata
stomata
In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
In most plants stomata is usually opened on leaves to preserve water. As a result, CO2 is added during the Calvin Benson Cycle.
Plants that fix CO2 into organic acids at night when the stomata are open and carry out the Calvin cycle during the day when the stomata are closed are called CAM (Crassulacean Acid Metabolism) plants. CAM plants have adapted their carbon fixation process to avoid water loss during the day by keeping stomata closed, and perform photosynthesis during the night when conditions are cooler and less water loss occurs.
Calvin and Benson
It is widely known that CAM plants open their stomata at night time to fix the CO2 in form of organic acids. However, during the light reactions in daytime O2 is evolved while the stomata are closed and there is no way out. The question goes to the possible mechanism by which these plants can handle this high oxygen level during the daytime, while the stomata are closed. Do these plants have an oxygen accumulation and release system like that of CO2? Is such a mechanism studied or described elsewhere?
Their stomata during the day!.
Yes, during a drought, plants close their stomata to conserve water and prevent excessive water loss through transpiration. This helps the plant maintain its hydration levels and survive the dry conditions.
Calvin & Benson cycle of Photosynthesis
generally xerophytic plants have sunken stomata
stomata
Stomata
C4 plants keep their stomata closed during hot and dry conditions to reduce water loss through transpiration. By keeping their stomata closed during these times, C4 plants can minimize water loss while still being able to carry out photosynthesis efficiently using their unique carbon fixation pathway.