Which of the following statements is false regarding the experiment carried out for photosynthesis?

The two leaves experiment proved that photosynthesis took place only in the green part of the leaf which is exposed to sunlight

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Half leaf experiment indicate that co2 is required for photosynthesis

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In half experiment some part of leaf is inserted in a test tube having soaked cotton

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Starch is formed in a leaf

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Solution

The correct option is C The two leaves experiment proved that photosynthesis took place only in the green part of the leaf which is exposed to sunlight
Variegated leaves have green parts (where the cells contain chlorophyll) and white parts (where there is no chlorophyll). Only the parts that were green become blue/black with iodine solution, showing the importance of chlorophyll in photosynthesis. The parts without chlorophyll do not photosynthesize, and so they do not make starch and the iodine does not change colour.
So the correct option is 'The two leaves experiment proved that photosynthesis took place only in the green part of the leaf which is exposed to sunlight'.

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