Q.

Choose the incorrect statement with respect to photosynthesis.

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By Expert Faculty of Sri Chaitanya

Rubisco shows greater affinity towards oxygen when CO2 and O2 concentrations are nearly equal.

C3 plants have high CO2 optima than C4 plants.

Bundle sheath may be several layered in the leaves of C4 plants.

In reduction stage of C3 cycle there is utilization of 2 ATP and 2 NADPH for per CO2 molecule fixed.

answer is 1.

(Detailed Solution Below)

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Detailed Solution

Rubisco shows more affinity towards CO2 than O2 when their concentration is nearly equal. C3 plants have higher CO2 optima as 450μlL-1than C4 plants which have 360μlL -1. Bundle sheath of C4 plants is usually many layered around the vascular tissues but single layered in maize. In reduction stage of C3 cycle there is usage of 2 ATP and 2NADPH per CO2 molecule fixed.

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