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Question
The rate of photosynthesis is highest in ___________.
The rate of photosynthesis is highest in ___________.
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Solution
The correct option is C red light
Plants use a small portion of light which is incident on them. Chlorophyll a and chlorophyll b absorb light in the blue and red region. Carotenoids absorb light mostly in the blue region of the spectrum of light. In monochromatic lights, maximum photosynthesis occurs in red light, followed by blue light and poor photosynthesis in green light. Plants absorb some yellow and orange light, but these wavelengths are not the most important for photosynthesis. Seedlings given yellow or orange light alone will not be able to create carbohydrates, and so will not grow and thrive.
Plants use a small portion of light which is incident on them. Chlorophyll a and chlorophyll b absorb light in the blue and red region. Carotenoids absorb light mostly in the blue region of the spectrum of light. In monochromatic lights, maximum photosynthesis occurs in red light, followed by blue light and poor photosynthesis in green light. Plants absorb some yellow and orange light, but these wavelengths are not the most important for photosynthesis. Seedlings given yellow or orange light alone will not be able to create carbohydrates, and so will not grow and thrive.
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