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Question
In a maize plant, which enzyme is used for fixing carbon dioxide to oxaloacetic acid?
In a maize plant, which enzyme is used for fixing carbon dioxide to oxaloacetic acid?
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Solution
The correct option is C Phosphoenol pyruvic acid carboxylase
Maize is a C4 plant. Phosphoenol pyruvic acid carboxylase is the enzyme that is used to fix CO2 to oxaloacetic acid in the C4 pathway. Phosphoenol pyruvate or phosphoenol pyruvic acid (a 3 carbon compound) accepts CO2 in the presence of the enzyme PEPcase (phosphoenol pyruvic acid carboxylase) and gets converted into a 4-carbon compound, i.e., oxaloacetic acid.
Ribulose phosphate kinase is an enzyme which is involved in the regeneration of RuBP.
Fructose phosphate is a metabolite formed in the glycolysis pathway, which is a part of cellular respiration.
Ribulose bisphosphate carboxylase (RuBisCO) catalyzes the carbon fixation step in the Calvin cycle.
Maize is a C4 plant. Phosphoenol pyruvic acid carboxylase is the enzyme that is used to fix CO2 to oxaloacetic acid in the C4 pathway. Phosphoenol pyruvate or phosphoenol pyruvic acid (a 3 carbon compound) accepts CO2 in the presence of the enzyme PEPcase (phosphoenol pyruvic acid carboxylase) and gets converted into a 4-carbon compound, i.e., oxaloacetic acid.
Ribulose phosphate kinase is an enzyme which is involved in the regeneration of RuBP.
Fructose phosphate is a metabolite formed in the glycolysis pathway, which is a part of cellular respiration.
Ribulose bisphosphate carboxylase (RuBisCO) catalyzes the carbon fixation step in the Calvin cycle.
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