In sugarcane plant $^{14} C O_{2}$ is fixed in malic acid. in which the enzyme that fixes $C O_{2}$ is:

Ribulose biphosphate carboxylase

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Phosphoenol pyruvic acid carboxylase

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Ribulose phosphate kinase

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Fructose phosphatase

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Solution

The correct option is B Phosphoenol pyruvic acid carboxylase
In C4 plants like sugarcane, $C O_{2}$ is fixed on to phosphoenol pyruvic acid to form oxaloacetic acid. This reaction is catalyzed by the enzyme phosphoenol pyruvic acid carboxylase. The oxaloacetic acid is reduced to malic acid.

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