Q.

Which of the following statement is correct for plants at low light conditions?

Moderate

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By Expert Faculty of Sri Chaitanya

With increase in CO2 concentration, C3 plant shows increase in photosynthetic rate.

Maize plant shows increase in rate of photosynthesis with rise in CO2 concentration.

Tomato and maize both show increase in rate of photosynthesis with rise in CO2 concentration.

Tomato and maize do not show increase in rate of photosynthesis at high atmospheric CO2 concentration.

answer is 4.

(Detailed Solution Below)

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Detailed Solution

The C3 and C4 plants respond differently to CO2 concentrations. At low light conditions neither group responds to high CO2 conditions. At high light intensities, both C3and C4 plants show increase in the rates of photosynthesis as high CO2 is provided. Tomato is a C3 plant and Maize is C4 plant.

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