A C4 plant does not undergo photorespiration because its enzyme site accumulates CO2 by itself, making photorespiration impossible. By breaking down C4 acid in the cells of the bundle sheath, the CO2 that is released gives rise to an increase in intracellular concentration. Ultimately, this ensures the RuBisCO is an efficient carboxylase, and that oxygenase activity is minimized. Photosynthesis rates thus increase, increasing the productivity of C4 plants.Answered by Abhisek | 11 months ago
Figure shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions:
(a) At which point/s (A, B or C) in the curve is light a limiting factor?
(b) What could be the limiting factor/s in region A?
(c) What do C and D represent on the curve?