The soil around the plant is very dry
Their stomata during the day!.
Changes in the osmotic potential of gaurd cells make that stomata open or closed
Plant cells would need to close or partially close their stomata during times of water stress, such as drought, to prevent excessive water loss through transpiration. Closing the stomata also helps conserve water by reducing the entry of harmful pathogens or pollutants into the plant.
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stomata
Shortage of water causes the stomata to close.
The guard cells open and close the stomata as needed.
they close to conserve water
They close to conserve water.
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I also wanna get answer to this question.....?
When light hits the stomata it activates photosynthetic K+ pumps. These cells pump potassium ions into the guards cell around the stomata. Water is attracted to the potassium ions and thus enters the guards cells. This causes the guard cells to swell, but the rigidity of the one side causes that side to bow inwards, this creates an opening for gases to exchange in the leaf. This opening is the stomata. When water is not present, the stomata will not open.
close
Daylight
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.
Stomata open in response to environmental factors such as light intensity, CO2 levels, and humidity. Light triggers the production of a hormone called abscisic acid, causing the guard cells around the stomata to swell and open. Conversely, in darkness or when environmental conditions are unfavorable, the stomata close to prevent water loss through transpiration.
Their stomata during the day!.