CAM plants open their stomata at night admitting CO2 while m

CAM plants open their stomata at night, admitting CO_2 while minimizing water loss. True False

Solution

The statement is true because the CAM plants fix the carbon dioxide during the night in mesophyll cells and during the day carbon dioxide is broken and utilized in the Calvin cycle. This is because the CAM plants have adapted themselves to a hot and arid condition where it is necessary to reduce water loss. The CAM plants did not open their stomata in the day and gas exchange cannot take place between plant and atmosphere, the co₂ is removed by a malate and used by a decarboxylation reaction. Then the co₂ is utilized in the Calvin cycle for the fixation of sugar.