In case of C4-pathway
A. CO2 combines with PGA
B. CO2 combines with PEP
C. CO2 first combines with RuBP
D. CO2 combines with RMP
Answer: Option B
Solution(By Examveda Team)
In the case of the C4-pathway, CO2 combines with PEP.The CO2 combines with ribulose bisphosphate and goes through the Calvin cycle while the pyruvate re-enters the mesophyll cells, reacts with ATP, and is converted back to phosphoenolpyruvate, the starting compound of the C4 cycle.
PEP carboxylase attaches an incoming carbon dioxide molecule to the three-carbon molecule PEP, producing oxaloacetate.
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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