PLANT PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Increase light intensity
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Increase glucose
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Increase methane
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Increase in water
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Detailed explanation-1: -Increase in light intensity increases photosynthesis initially and then stabilises. Now if concentration increases, photosynthesis also increases.
Detailed explanation-2: -Light intensity-Increasing light intensity increases the rate of photosynthesis because more energy is provided. However, if the light intensity is increased above a certain threshold, the rate of photosynthesis will not increase because another factor (such as temperature) is limiting the rate of the reaction.
Detailed explanation-3: -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.
Detailed explanation-4: -The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.
Detailed explanation-5: -The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.