SATHEE: Photosynthesis Ques 37

Photosynthesis Ques 37

37. The enzyme that catalyses carbon dioxide fixation in $C_4$ plants is

[1992]

(a) RuBP carboxylase

(b) PEP carboxylase

(c) Carbonic anhydrase

(d) Carboxy dismutase

Show Answer

Answer : b

Hints & Solution

(b) In $C_4$ plants, the primary acceptor of $CO_2$ is phosphoenol pyruvate. It combines with carbon dioxide in the presence of PEP carboxylase to form oxaloacetic acid in mesophyll cells.

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Photosynthesis

Photosynthesis Ques 37

37. The enzyme that catalyses carbon dioxide fixation in $C_4$ plants is

Answer : b

Hints & Solution

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