Assertion: Chlorophyll a is the chief pigment associated with photosynthesis.
Reason: In the blue and red regions of spectrum, there is maximum absorption by chlorophyll- a, also shows higher rate of photosynthesis

Plant of arid regions that modifies its stem into flattened structure that contains chlorophyll & carries out photosynthesis is

Plant of arid regions that modifies its stem into flattened structure that contains chlorophyll & carries out photosynthesis is

Assertion : The role of chlorophyll in photosynthesis is absorption of light and photolysis of water. Reason : The function of solar energy is assimilation of CO_2

Observe the following graphs carefully and select the true or false statement regarding it:- (i) Graph a indicates that at wavelength of blue and red color, chlorophyll a shows maximum absorption. (ii) Graph b indicates that at wavelengths of blue and red color, plants shows maximum rate of photosynthesis. (iii) Graph c indicates complete one to one overlap between the absorption spectrum of chlorophyll a and the action spectrum of photosynthesis.

In the figure given below, the black line (upper) indicates action spectrum for photosynthesis and the lighter line (lower) indicates the absorption spectrum of chlorophyll a, answer the followings: If chlorophyll-a is responsible for light reaction of photosynthesis, why do the action spectrum and absorption spectrum not overlap?