Question
Enzyme that fixes CO₂ in C4 plants at Iow
concentrations?Solution
In C4 plants , CO₂ fixation at low concentrations is carried out by the enzyme PEP carboxylase (PEPcase) . This enzyme has a high affinity for CO₂ , allowing the plant to fix CO2 efficiently even when it is present in low amounts. This is the first step in the C4 photosynthetic pathway.
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