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Standard XII
Biology
Question

Increase in light intensity beyond saturation point causes:
  1. More photosynthesis
  2. Less photosynthesis
  3. Breakdown of the chlorophyll and a decrease in photosynthesis
  4. Helicotropism

A
Less photosynthesis
B
Helicotropism
C
More photosynthesis
D
Breakdown of the chlorophyll and a decrease in photosynthesis
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Solution
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It is based in the black man's law of limiting factor, in which rate of photosynthesis depends upon the limiting factors. When the light intensity reaches beyond its saturation point, there will not be any change in the rate of photosynthesis, but it will decrease eventually as shown in the graph.
so, the correct option is ' Less photosynthesis'.

1136708_863354_ans_67416cb4dbff4264a88d6ba14ed5c1e7.png

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