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Question
In C4 plants photorespiration does not occur due to
In C4 plants photorespiration does not occur due to
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Solution
The correct option is C increased concentration of CO2 at enzyme site
In C4 plants, photorespiration does not occur because they have a mechanism that increases the concentration of CO2 at the enzyme site. This takes place when the C4 acid from the mesophyll is broken down in the bundle sheath cells to release CO2. This results in an increase in the intracellular concentration of CO2. This ensures that the RuBisCO functions as a carboxylase, thus, minimising the oxygenase activity.
In C4 plants, photorespiration does not occur because they have a mechanism that increases the concentration of CO2 at the enzyme site. This takes place when the C4 acid from the mesophyll is broken down in the bundle sheath cells to release CO2. This results in an increase in the intracellular concentration of CO2. This ensures that the RuBisCO functions as a carboxylase, thus, minimising the oxygenase activity.
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