Question

Leaves other than green colour perform photosynthesis. How will you test?​

Answer 1

Answer:

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Yes, these leaves can also carry out the process of photosynthesis because they contain chlorophyll.

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The large amount of red, brown and violet pigment mask the green colour of chlorophyll in these leaves.

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Test

Heat a plant leaf in boiling water for 30 seconds (this kills the leaf, stopping any chemical reactions) add the leaf to boiling ethanol in a water bath for a few minutes (the boiling ethanol dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour)

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There are different colours of pigments found like green, brown, red, yellow. Chlorophyll is the green pigment which gives the green colour in the plant. Pigments like betalains (red or yellow pigments) and other chlorophyll pigments mask the green colour of the leaf.

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