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Question
In case of C-4 pathway, the first step is
In case of C-4 pathway, the first step is
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Solution
The correct option is C CO2 combines with PEP
Hatch and Slack, 1966, discovered an alternate pathway for carbon dioxide fixation. Since the first product is a 4 carbon compound, hence it is popularly termed as C4 cycle and the plants where it is found as C4 plants. This carbon reduction pathway has been reported in Sugarcane, Zea, Panicum, Sorghum, Atriplex etc. Here, the carbon dioxide acceptor is phospho enol pyruvic acid (PEP) and the first stable product is oxaloacetic acid (OAA). The initial carboxylating enzyme is PEP carboxylase.Therefore, the correct answer is option C.
Hatch and Slack, 1966, discovered an alternate pathway for carbon dioxide fixation. Since the first product is a 4 carbon compound, hence it is popularly termed as C4 cycle and the plants where it is found as C4 plants. This carbon reduction pathway has been reported in Sugarcane, Zea, Panicum, Sorghum, Atriplex etc. Here, the carbon dioxide acceptor is phospho enol pyruvic acid (PEP) and the first stable product is oxaloacetic acid (OAA). The initial carboxylating enzyme is PEP carboxylase.
Therefore, the correct answer is option C.
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