At low $C O_{2}$ concentration, photorespiration in $C_{3}$ and $C_{4}$ plants respectively is

high, high

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low, medium

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high, negligible

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negligible, high

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Solution

The correct option is C high, negligible
When availability of carbon dioxide is low, the $C_{3}$ plants undergo photorespiration. In this process the RuBP combines with oxygen in presence of enzyme RuBisCo instead of carbon dioxide and this turns out to be a wasteful process.
$C_{4}$ plants avoid photorespiration due to certain adaptations.

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Similar questions

C_{3}

C_{4}

C O_{2}

C O_{2}

C_{3}

C_{4}

C_{4}

C_{3}

C_{4}

Which type of plants would show higher rate of photosynthesis in low temperature and high $C O_{2}$ concentration?

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