no
They close to conserve water.
they close to conserve water
true
The guard cells open and close the stomata as needed.
guard cells
close
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.
the guard cells
Their stomata during the day!.
Stomata close under strong sunlight to prevent excessive water loss through transpiration and to protect the plant from drying out. Closing the stomata reduces the amount of water vapor that can escape from the leaf surface, helping the plant conserve water.
The stomata are closed when exposed to saline solution or salt water. If a plant is exposed to the salty water it will become dehydrated and eventually die. Uness the plant is a type of mangrove or is salinity tolerant plant.
Changes in the osmotic potential of gaurd cells make that stomata open or closed