The Total solution for NCERT class 6-12
Figure shows the effect of light on the rate of photosynthesis. Based onthe 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?
a) Light is a limitingfactor at A and 50% of B which is due to the increase in the photosyntheticrate with increase in the intensity of light
b) Light, CO2 andH2O could be the limiting factor/s in region A.
c) C indicates a stagebeyond which light is not a limiting factor and D is the line beyond which theintensity of light does not affect the photosynthetic rate.