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Question: Answered & Verified by Expert
In sugarcane plant, which of the following enzymes is responsible for the fixation of 14CO2 in malic acid?
BiologyPhotosynthesis in Higher PlantsNEET
Options:
  • A Fructose phosphatase 
  • B Ribulose bisphosphate carboxylase 
  • C Phosphoenol pyruvic acid carboxylase 
  • D Ribulose phosphate kinase
Solution:
2837 Upvotes Verified Answer
The correct answer is: Phosphoenol pyruvic acid carboxylase 
In C4-plants, CO2 is picked up by phosphoenol-Pyruvate (PEP) and the reaction being catalyzed by PEP carboxylase.

CO 2 + PEP Mesophyll cells of C 4 - plant PEP carboxylase Oxalo acetic acid dehydrogenase NADPH Malic acid + NADP +

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