Because chlorophyll a is the chief pigment associated with photosynthesis as it traps light, a plant that lacks this pigment would not be able to carry out photosynthetic activity. The other accessory pigments, such as chlorophyll b, xanthophylls, and carotenoids, are equally crucial to the process of absorption of light and energy transfer to chlorophyll a. Moreover, they reduce photooxidation of chlorophyll a while enabling a wider wavelength range to be utilized for photosynthesis.Answered by Abhisek | 1 year ago
Give a comparison between the following:
(a) C3 and C4 pathways
(b) Cyclic and non-cyclic photophosphorylation
(c) Anatomy of leaf in C3 and C4 plants
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?
Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green? Why?
Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
RuBisCo is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCo carries out more carboxylation in C4 plants?