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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. - Biology

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?

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Solution

Light is a limiting factor for photosynthesis. Leaves get lesser light for photosynthesis when they are in shade. Therefore, the leaves or plants in shade perform lesser photosynthesis as compared to the leaves or plants kept in sunlight.

In order to increase the rate of photosynthesis, the leaves present in shade have more chlorophyll pigments. This increase in chlorophyll content increases the amount of light absorbed by the leaves, which in turn increases the rate of photosynthesis. Therefore, the leaves or plants in shade are greener than the leaves or plants kept in the sun.

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APPEARS IN

NCERT Class 11 Biology Textbook
Chapter 13 Photosynthesis in Higher Plants
Q 7 | Page 225
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