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In what way can the change in the size of the stomata in the presence of light also be a disadvantage to the plant?
the gas exchange is prevented. it also limits the carbon supplies.
How does the stomata affect the light reaction?
Stomata control the gas exchange in leaves, allowing carbon dioxide to enter for the light reaction of photosynthesis. When stomata open, carbon dioxide enters the leaf freely, enabling photosynthesis to occur efficiently. If stomata are closed, this can limit the availability of carbon dioxide, which can in turn affect the rate of the light reaction.
Why did the stomata from the dark leaf appear different from the light leaves?
Stomata in dark leaves may appear smaller and less abundant compared to light leaves due to reduced photosynthetic activity. The plant may close its stomata in the dark to conserve water and minimize transpiration.
What causes the stomata on leaves to open?
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.
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)
In what way can the change in the size of the stomata in the presence of light also be a disadvantage to the plant?
the gas exchange is prevented. it also limits the carbon supplies.
How does the stomata affect the light reaction?
Stomata control the gas exchange in leaves, allowing carbon dioxide to enter for the light reaction of photosynthesis. When stomata open, carbon dioxide enters the leaf freely, enabling photosynthesis to occur efficiently. If stomata are closed, this can limit the availability of carbon dioxide, which can in turn affect the rate of the light reaction.
Why are plants found in the shade have more stomata than plants found in the sun?
Plants in the shade have more stomata because they need to maximize their ability to capture light energy for photosynthesis in low light conditions. Stomata allow for gas exchange, which is necessary for photosynthesis to occur. Having more stomata enables shade plants to take in more carbon dioxide for photosynthesis, despite the reduced light levels.
Why did the stomata from the dark leaf appear different from the light leaves?
Stomata in dark leaves may appear smaller and less abundant compared to light leaves due to reduced photosynthetic activity. The plant may close its stomata in the dark to conserve water and minimize transpiration.
Which part of the plant takes in light and air?
The leaves through their stomata take air in.
What causes the stomata on leaves to open?
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.
Why do you think stomata shut at night?
To stop water loss from the plant. In the day light photosynthesis is taking place and carbon dioxide needs to be admitted into the stomata for this process. At night, no light, so plants, who lose water all day long, as it is replaced by the roots, shut the no longer needed stomata to conserve water.
When magnesium is burning in the presence of oxygen what are some evidence that a chemical change is occurring?
Some evidence that a chemical change is occurring when magnesium is burning in the presence of oxygen include the formation of a white powdery substance (magnesium oxide), the emission of light and heat, and the change in physical properties of the magnesium (e.g., color change or formation of ash).
Why does stomata close?
Due to loss in the turgor pressue of their gaurd cells in the absence of 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)
How are the stomata controlled?
The stomata are controlled by two epidermal cells called guard cells. When water flows in, the guard cells swell up and closes the stomata. When the water leaves, it becomes flaccid and opens the stomata.
The movement of gases in and out of the leaf is regulated by what?
The movement of gases in and out of the leaf is regulated by small openings on the surface called stomata. Stomata open and close to control the exchange of carbon dioxide and oxygen during photosynthesis and respiration. The opening and closing of stomata is influenced by factors such as light intensity, humidity, and levels of carbon dioxide in the atmosphere.
