compare the photorespiration between Barley and Sugarcane?
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Barley is C3 plant and this sugarcane is C4 plant .in barely Co2 is captured by
Rubisco which capture O2 insted of Co2.when [O2] is high in the cell .in sugarcane Co2 is captured by PEP carboxylase enzyme which hasn't an oxidase activity .in sugarcane ,the capture of Co2 and decarboxylation occur in two adjacent cells but in barely both occur in same cell .and also PEP carboxylase has a much greater affinity for Co2 than Rubisco .sugarcane have evolved to minimise photo respiration
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Barley is C3 plant and this sugarcane is C4 plant .in barely Co2 is captured by
Rubisco which capture O2 insted of Co2.when [O2] is high in the cell .in sugarcane Co2 is captured by PEP carboxylase enzyme which hasn't an oxidase activity .in sugarcane ,the capture of Co2 and decarboxylation occur in two adjacent cells but in barely both occur in same cell .and also PEP carboxylase has a much greater affinity for Co2 than Rubisco .sugarcane have evolved to minimise photo respiration
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