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Question

Tropical plants like sugarcane show high efficiency of CO2 fixation because of

A
Calvin cycle
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B
Hatch - Slack cycle
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C
Cyclic photophosphorylation
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D
TCA Cycle
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Solution

The correct option is B Hatch - Slack cycle
Tropical plants like sugarcane and maize show C4 cycle or Hatch Slack pathway in which the carbon dioxide is initially fixed into four carbon atom containing organic acids. These plants do not show photorespiration and hence, show higher efficiency for carbon dioxide fixation as compared to the C3 plants.

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