Advertisements
Advertisements
प्रश्न
Chlorophyll ‘a’ is the primary pigment for light reaction. What are accessory pigments? What is their role in photosynthesis?
उत्तर
Accessory pigments are those pigments, which assist in photosynthesis by capturing energy from the light of different wavelengths, e.g., chlorophyll b, Xanthophylls and carotenoids.
Role in Photosynthesis:
- They absorb wavelengths of light not absorbed by chlorophyll a and transfer the energy to chlorophyll.
- They also protect chlorophyll a from photo-oxidation.
APPEARS IN
संबंधित प्रश्न
Suppose there were plants that had a high concentration of Chlorophyll b, but lacked chlorophyll a, would it carry out photosynthesis? Then why do plants have chlorophyll b and other accessory pigments?
Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
The reaction centre of P.S. II is ________.
(A) Chl-a, 700
(B) Chl-a, 680
(C) Chl-a, 673
(D) Chl-a, 650
Leaves appear green because they ______.
Pigment system is concerned with :
Which metal ion is a constituent of chlorophyll?
Which pigment acts directly to convert light energy to chemical energy?
Which range of wavelength (in nm) is called photosynthetically active radiation (PAR)?
In a way green plants and cyanobacteria have synthesized all the food on the earth. Comment.
What can we conclude from the statement that the action and absorption spectrum of photosynthesis overlap? At which wavelength do they show peaks?
