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The stomata are surrounded by guard cell which are tasked with the graduated opening and closing of the stomata. So, wide ope much carbon dioxide is diffusing into the cells and the rate of photosynthesis is high, but as the stomata work their way towards the closed position the rate of photosynthesis slows down until it can stop completely with no diffusion of CO2 through the closed stomata.
What else can I help you with?
What will happen if there are too many stomata on the top of the leaf?
Stomata are a plants way of exchanging gasses in photosynthesis. The stomata also are resoponsible for transpiration. Most plants have stomata on the under side of the leaf in order to prevent too much water loss. There already is a lot of stomata in leaves but I think you mean to ask "What would happen if the stomata were open all the time?" this would result in mass water loss and cause a plant to wilt.Edited answer:Large number of stomata will increase porocity of the leaves and will facilitate better gaseous exchange and more transpiration.
Would the stomata open or close if the CO2 concentration decrease?
Opening and closing of stomata is regulated by concentration of water in guard cells. When transpiration is required, water reaches the guard cells and they swell up. This opens the stomata's pore. When they are not required to be opened, water is not present in guard cells and they shrink causing stomata's pore to close.
Why calculate leaf surface area with transpiration?
Calculating leaf surface area helps estimate the total surface available for transpiration. Transpiration is the process where water is evaporated from the surface of the leaf into the atmosphere, which is important for plant cooling and nutrient uptake. By knowing the leaf surface area, we can better understand the potential transpiration rate and overall water requirements of the plant.
Why there are more stomata in lower epidermis than in upper epidermis?
Because lower epidermis remains away from the light and in the absence of light the water loss through transpiration is minimized.
Do desert plants or rain forest plants have more stomata?
Desert plants typically have fewer stomata compared to rainforest plants. This is because desert plants need to conserve water due to the arid environment they inhabit, so they have adapted to minimize water loss through transpiration by having fewer stomata. In contrast, rainforest plants have more stomata to facilitate gas exchange for photosynthesis, as they are in a more humid environment where water availability is not a limiting factor.
What will happen if there are too many stomata on the top of the leaf?
Stomata are a plants way of exchanging gasses in photosynthesis. The stomata also are resoponsible for transpiration. Most plants have stomata on the under side of the leaf in order to prevent too much water loss. There already is a lot of stomata in leaves but I think you mean to ask "What would happen if the stomata were open all the time?" this would result in mass water loss and cause a plant to wilt.Edited answer:Large number of stomata will increase porocity of the leaves and will facilitate better gaseous exchange and more transpiration.
Why does having too much stomata increase water loss?
Stomata are like pores that are meant to control water levels, especially in transpiration. The right number of stomata keeps the plant in equilibrium, too many and the plant loses too much water, drying out and dying.
How does the transpiration affects the distribution of stomata in a leaf?
Transpiration in a leaf causes water to be lost through the stomata, leading to a decrease in internal water pressure. To compensate for this loss, stomata are typically distributed more on the lower surface of a leaf where there is less direct sunlight and wind exposure, helping to reduce excessive water loss and maintain the plant's hydration levels.
Would the stomata open or close if the CO2 concentration decrease?
Opening and closing of stomata is regulated by concentration of water in guard cells. When transpiration is required, water reaches the guard cells and they swell up. This opens the stomata's pore. When they are not required to be opened, water is not present in guard cells and they shrink causing stomata's pore to close.
Why calculate leaf surface area with transpiration?
Calculating leaf surface area helps estimate the total surface available for transpiration. Transpiration is the process where water is evaporated from the surface of the leaf into the atmosphere, which is important for plant cooling and nutrient uptake. By knowing the leaf surface area, we can better understand the potential transpiration rate and overall water requirements of the plant.
Why there are more stomata in lower epidermis than in upper epidermis?
Because lower epidermis remains away from the light and in the absence of light the water loss through transpiration is minimized.
What is cobalt chloride paper and what it is used for?
Cobalt chloride paper is used to study rate of transpiration through the upper and lower surface of leaf.The upper surface of leaf has less number of stomata so more time will be taken to change from blue to pink by cobalt chloride paper; while the lower surface of leaf has more number of stomata so less time will be taken to change from blue to pink by cobalt chloride paper. This is because the fact that the transpiration rate is higher when stomata are more in number and vice versa.
Do stems have stomatas?
Yes, stems do have stomata, but they are typically fewer in number and less concentrated compared to the leaves. Stomata on stems help in gas exchange and transpiration, but their primary function is to regulate water loss and gas exchange rather than photosynthesis.
Do desert plants or rain forest plants have more stomata?
Desert plants typically have fewer stomata compared to rainforest plants. This is because desert plants need to conserve water due to the arid environment they inhabit, so they have adapted to minimize water loss through transpiration by having fewer stomata. In contrast, rainforest plants have more stomata to facilitate gas exchange for photosynthesis, as they are in a more humid environment where water availability is not a limiting factor.
What factors effect the rate of transpiration?
Humidity - increased humidity decreases transpiration, as the air is already saturated with water, and so the water potential gradient is smaller, and so less water is lost by transpiration. Temperature - increased temperature increases transpiration as the water has a greater kinetic energy and so there is more evaporation of water. Wind/air movement - in still air, a shell of highly saturated air surrounds the air, decreasing the water potential gradient and decreasing transpiration rate, but wind destroys this shell of saturated air so there is a bigger water potential gradient, amd more transpiration. Light intensity - light is needed for the stomata to open - they do not open at night time (unless the plants are xeromorphically adapted desert plants or plants living in other harsh environments such as salt marshes). Internal factors that affect transpiration are the number of stomata, leaf area, the cuticle (thick waxy cuticles prevent water loss, whilst thinner and less waxy cuticles allow more water to be lost. Distribution of stomata also affects transpiration - most plants have most of the stomata on the lower surface of the leaf where the stomata are less exposed to environmental conditions.
Number of stomata in upper and lower surface of leaf of hibiscus?
There are about 92 stomatas on upper surface and 39 stomatas on the lower surface. In a dorsiventral leaf number of stomata is more on the lower surface hence the above answer may please be verified
What is the function of stomata and guard cells?
There are a large number of tiny pores called stomata on the surface of leaves of plants (The singular of stomata is stoma).Each stomatal pore (or stoma) is surrounded by a pair of guard cells .The opening & closing of stomatal pores are controlled by the guard cells.
