Question

RuBisCO is an enzyme that acts both as a carboxylase and oxygenase . Why do you think RuBisCO carries out more carboxylation in C4 plants ?

Answer it ! purple you !​

Answer 1

Answer:

RUBISCO is an enzyme whose activity depends upon concentration of either oxygen or carbon dioxide...

And in C4 plants amount of carbon dioxide is more,

hence it performs

Answer 2

• In C4 plants photorespiration does not occur.
• This is because they have a mechanism that increases the concentration of Co2 at the enzyme site.
• This takes place when C4 acid from the mesophyl is broken down in the bundle sheath cells to release CO2, this results in increasing the intercellular concentration of CO2 .
• In turn, this ensures that the RubisCO functions as a carboxylase minimising the oxygenase activity .

Hope this helps you !