Q.
In a plant cell, which of the following pigments participates
directly in the light reactions of photosynthesis?
264
224
Photosynthesis in Higher Plants
Report Error
Solution:
Chlorophyll a is the pigment that participates directly
in the light reaction of photosynthesis. It absorbs the
wavelengths of violet-blue and orange-red light and
functions as a primary electron donor during the election
transport chain in photosynthesis. It also functions in
transporting energy to the reaction centre where P680 and
P700 are located. The 'light-dependent reactions' is the first
stage of photosynthesis, in which plants capture and store
energy from sunlight. In this process, light energy is
converted into chemical energy, in the form of the energy carrying molecules ATP and NADPH.