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At what concentration do C4 plants show saturation?(a) 430 μlL^-1(b) 450 μlL^-1(c) 340 μlL^-1(d) 360 μlL^-1This question was addressed to me in a national level competition.My question is from Factors Affecting Photosynthesis in portion Photosynthesis in Higher Plants of Biology – Class 11

Answer»

Right option is (d) 360 μlL^-1

Easiest explanation: C3 plants and C4 plants show different carbon DIOXIDE concentration saturations. At HIGH intensities of light, C4 plants show carbon dioxide saturation at 360 μlL^-1 while C3 plants show saturation at 450 μlL^-1.



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