Question

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Why is the colour of a leaf kept in the dark frequently becomes yellow, or pale green ?¿

➠ "ѕραм καяиє ωαℓє υϲнíτ ∂υяí ϐиαγє яκнє -,-" ​

Answer 1

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ANSWERS:-

• The plants which are kept in the dark are generally yellow, or pale green because the production of the chlorophyll pigment (essential for photosynthesis) is directly proportional to the amount of light available. ... Thus the leaf turns pale yellow. AND Xanthophylls are more stable (yellowish in color).
• In the dark, there is no production of chlorophyll. Chlorophyll present in the leaf is degraded, thus making the leaf pale green or yellow.

Answer 2

Answer:

In the dark, there is no production of chlorophyll. Chlorophyll present in the leaf is degraded, thus making the leaf pale green or yellow. Carotenoid is a more stable pigment.