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Stomas can be opened or closed depending on climateric conditions.
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Why are stomata's in the lower epidermis but not in the upper epidermis?
The explanation lies in how the stomata works. They regulate any gases that pass through them. When the temperature is too hot, it will close to conserve water vapor but this will block CO2 coming in also. Therefore plants don't want to have their stomata closed all the time nor opened all the time. Sunlight hits the top of the leaves and therefore the temperature and light intensity is higher on the top surface of the leaves. If many stomata were to be located on the top, the plant would loose much of its water and when the stomata closes to conserve water, it won't get as much CO2. Therefore for most plants, the stomata stay on the bottom where the temperature is a bit cooler. Also it is protected from the wind since wind can cause evaporation of water.
What are the openings or stomata during the hottest time of the day?
Closed.
What happens when the stomata on a plant's leaves are open?
Stomata, which are holes in the epidermis of plants, allow for gas exchange and the passage or retention of water for the plant. Stomata enable respiration (gas exchange) in plants that provides for photosynthesis. Photosynthesis produces food for the plant from the transformation of oxygen from carbon dioxide, via the stomata as the pathway into the plant. Stomata also allows the passage of water into the plant (Transpiration), since the leaves are mostly covered by wax (the cuticle). Water can enter the vascular system, transporting nutrients and such to the rest of the plant. The stomata can also retain water in case of a shortage of water, like a drought, and prevent water loss, enabling the plant to survive longer.-Katydid2014Stomata are tiny holes on the bottom of a leaf. They open and close depending on the situations surrounding the plant. When the stomata are open, water is lost from the plant through evapotranspiration, which is when they evaporate from the surface of the leaf. The stomata close at a certain period of time in order to keep this water in. The stomata also open in order to let more carbon dioxide in, which is needed for photosynthesis. For example, if there is an increase in light around the plant, the stomata will open more often for photosynthesis, and will lose more water from the plant.
What happens to a plant if its stomata stayed open all the time?
It would dehydrate because it would transpire too much.
What would happen to plant if its stomata stayed open all the time?
It would dehydrate because it would transpire too much.
What are the advantage of poverty?
An advantage of poverty might be the fact that families are more likely to live together for a longer period of time, keeping them close to each other. There really are not a lot of advantages to poverty.
What is the advantage of the calendar?
Calendar is the best time keeping tool.
CAM plants close their what during the day and open them at night?
Cam plants close during the night and open during the day because they are photosensitive and respond to light. To do it experimentally, try with a torch for some time.
What time of day would you exspect the stomata on a plant to be open or closed?
at night when there is little to no light.
Why do some plants close their stomata at night?
At night, there is no light, therefore no photosynthesis (which is the process of making energy from light). Photosynthesis uses CO2, however since photosynthesis is not occurring at night, there is no need to acquire CO2.Some plants (CAM plants) only open their stomata at night, however, in order to take in CO2 and store it until it is light and they can use photosynthesis then. This helps to eliminate water loss through the stomata which would occur more rapidly if the stomata were open during a hot day. (therefore, most CAM plants are found in desserts and such)
Why does the stomata of a desert plant close during the day?
In desert plants, the stomata is open during night. During night, desert plants (also called xerophytes) absorb co2 and form an intermediate. Then during day time when the stomata is closed to prevent loss of water, they use this stored carbon dioxide to perform photosynthesis.
Why don't plants keep their stomata open all time?
Plants don't keep their Stomata open all the time to prevent too much water loss.
Why don't plants keep their stomata open all the time?
Plants don't keep their Stomata open all the time to prevent too much water loss.
Why must a plant have its stomata open at least part of the time?
Stomata need to open to allow the air to flow in and out. This means the carbon dioxide used in photosynthesis can be replaced and the oxygen produced by photosynthesis can leave the leaf.Read more: Why_do_stomata_cells_open
Why are stomata's in the lower epidermis but not in the upper epidermis?
The explanation lies in how the stomata works. They regulate any gases that pass through them. When the temperature is too hot, it will close to conserve water vapor but this will block CO2 coming in also. Therefore plants don't want to have their stomata closed all the time nor opened all the time. Sunlight hits the top of the leaves and therefore the temperature and light intensity is higher on the top surface of the leaves. If many stomata were to be located on the top, the plant would loose much of its water and when the stomata closes to conserve water, it won't get as much CO2. Therefore for most plants, the stomata stay on the bottom where the temperature is a bit cooler. Also it is protected from the wind since wind can cause evaporation of water.
What are the openings or stomata during the hottest time of the day?
Closed.
Can water under ground in the desert dry out?
Plants that grow in arid environments have CAM pathway for photosynthesis. This means that the plants open their stomata at night time and close them during the day (more tropical plants are the reverse - open stomata during the day and close at night) so less water is lost due to evaporation in the heat of the day.
