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Photosynthesis

In an experim...

Question

In an experiment to show that 'sunlight is necessary for photosynthesis', the leaf is boiled in alcohol for few minutes using a water bath. It is essential because:
(a) Alcohol is highly volatile.
(b) Steam from the water bath heats the leaf rapidly.
(c) Steam from the water dissolves the chlorophyll.
(d) Alcohol is flammable.
And give reason for the answer.

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Solution

Ans C
Explanation :
After boinling in the Alcohol solution the leaf's green colour will be decolourized and the pigment won't be available.
Doing this we can show that the pigment is also required for the photosynthesis.

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