Stomata of CAM plants
A. Are always open
B. Open during day and close at night
C. Open during night and close during day
D. Never open
Answer: Option C
Solution(By Examveda Team)
Stomata of CAM plants open during night and close during day.CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions that allows a plant to photosynthesize during the day, but only exchange gases at night.
In a plant using full CAM, the stomata in the leaves remain shut during the day to reduce evapotranspiration, but they open at night to collect carbon dioxide (CO2) and allow it to diffuse into the mesophyll cells. Stomata in CAM plants open during the dark period and close during light period.
Behavior of stomata in CAM plants is part of an adaptive mechanism evolved by plants that grow in hot and dry environments to conserve water.
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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