Leaf surfaces in shade receive lesser sunshine, so they experience a lesser amount of photosynthesis than plants or leaves in direct sunlight. Leaf pigments present in shady areas increase photosynthesis. As the chlorophyll content increases, the leaf absorbs more light, leading to a greater amount of photosynthesis, which makes the leaves greener when in shade than when in sunlight.
Answered by Abhisek | 1 year agoGive 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?
Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
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?
RuBisCo is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCo carries out more carboxylation in C4 plants?