Complete answer: Water is one of the most important factors affecting the rate of photosynthesis. If the plant does not intake sufficient water or there’s less water availability, the stomata begin to close to avoid loss of water during transpiration.
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What factors affect rate of photosynthesis?
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
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How does water and carbon dioxide affect the rate of photosynthesis?
Carbon dioxide – with water – is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Again, at some point, a factor may become limiting.
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Can too much water slow photosynthesis?
Water stress adversely impacts many aspects of the physiology of plants, especially photosynthetic capacity. If the stress is prolonged, plant growth, and productivity are severely diminished.
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How does moisture affect photosynthesis?
Soil water conditions also affect the photosynthesis of plants. The decrease in soil water content causes a decrease in leaf water potential and an increase in stomatal resistance, which ultimately leads to increased leaf diffusion resistance, hindered CO2 diffusion and reduced photosynthetic rate.
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How does too much water affect photosynthesis?
Water stress induces the closure of stomata, limiting carbon availability at the carboxylation sites in the chloroplasts and, therefore, resulting in an excessive excitation of the photosynthetic apparatus, particularly photosystem II (PSII).
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Does water slow down photosynthesis?
Water indirectly influences the rate of photosynthesis. Stomatal closure impacts the rate of photosynthesis when the water supply is constrained. When there is a water shortage, the stomata close, reducing the amount of carbon dioxide available.
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Does water limit photosynthesis?
While it is true that photosynthesis cannot occur without water, the amount of water needed for the process is actually very small. As a result, water rarely becomes a limiting factor. Photosynthesis is much more likely to be limited due to a lack of light, carbon dioxide, or appropriate temperature.
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What causes photosynthesis to slow down?
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
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What are the 4 key factors affecting the rate of photosynthesis?
Factors Affecting the Rate of PhotosynthesisThe presence of photosynthetic pigments.A supply of carbon dioxide.A supply of water.Light energy.A suitable temperature.
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What are the 3 factors that affect the rate at which photosynthesis occurs?
Three factors that affect the rate of photosynthesis are temperature, light intensity, and the availability of water. dioxide. None of this gas would be present in an atmosphere of pure oxygen. There- fore, photosynthesis could not occur.
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What are 5 environmental factors that might affect the rate of photosynthesis?
The environmental factors which can affect the rate of photosynthesis are carbon dioxide, light, temperature, water, oxygen, minerals, pollutants and inhibitors.
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What factors affect the rate of photosynthesis GCSE?
Limiting Factors The rate of photosynthesis is affected by three main factors: temperature, light intensity and carbon dioxide concentration.
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How moisture availability affects the rate of photosynthesis?
Most experimental results have shown that the net photosynthetic rate (A), stomatal conductance (gs), and mesophyll conductance (gm) generally decrease with decreasing water availability, and an obvious reduction in photosynthesis occurs due to severe water deficit.
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Is moisture needed for photosynthesis?
Water is necessary for photosynthesis, which is how plants use energy from the sun to create their own food. During this process, plants use carbon dioxide from the air and hydrogen from the water absorbed through their roots and release oxygen as a byproduct.
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How water is affecting photosynthesis?
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
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Why humidity does not affect photosynthesis?
Hint: Growth and glycolysis are processes which do not require humidity as a factor. They are not dependent on humidity. Further for photosynthesis, sunlight, water and carbon dioxide are required.
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How does water affect the rate of photosynthesis?
Water indirectly influences the rate of photosynthesis. Stomatal closure impacts the rate of photosynthesis when the water supply is constrained. When there is a water shortage, the stomata close, reducing the amount of carbon dioxide available.
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How does carbon dioxide affects the rate of photosynthesis?
Carbon dioxide and rate of photosynthesis An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.
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How does sunlight carbon dioxide and water affect the rate of photosynthesis?
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas. After the sugar is produced, it is then broken down by the mitochondria into energy that can be used for growth and repair.
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How are carbon dioxide and water involved in both photosynthesis and respiration?
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
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