EVERYDAY SCIENCE

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of plant has the fewest stomata and only opens them at night?
A
C3
B
C4
C
CAM
D
roses
Explanation: 

Detailed explanation-1: -Many cacti and other succulent plants with CAM metabolism open their stomata at night and close them during the day to reduce the amount of water loss through transpiration. Thus, these plants close their stomata during the day. Was this answer helpful?

Detailed explanation-2: -The majority of CAM plants are found in hot, dry, very arid regions with little water. CAM plants undergo photosynthesis. Therefore, the stomata of such plants only open at night and remain closed throughout the day in order to prevent excessive water loss through transpiration.

Detailed explanation-3: -Their stomata only open at night, when humidity tends to be higher and temperatures are cooler, both factors that reduce water loss from leaves. CAM plants are typically dominant in very hot, dry areas, like deserts.

Detailed explanation-4: -No, CAM plants do not have many stomata. Since these plants live mostly in arid places, having lesser stomata would allow them to hold on to the water it could get.

Detailed explanation-5: -In CAM plants, the stomata in the leaves remain shut during the day to reduce transpiration through evaporation, but open at night to collect carbon dioxide (CO2).

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