A plant is kept in the dark for two days to d | vedclass

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(A) $1$. Destarching the plant ensures that no pre-existing starch is present in the leaves.$2$. Part $Q$ is exposed to sunlight and air, allowing pho

Vedclass · Accepted Answer

Blue-black, Brown

Vedclass · Answer

(A) $1$. Destarching the plant ensures that no pre-existing starch is present in the leaves.$2$. Part $Q$ is exposed to sunlight and air, allowing photosynthesis to occur, which produces starch.$3$. Part $R$ is covered, preventing light from reaching it, so photosynthesis cannot occur and no starch is produced.$4$. Iodine solution turns blue-black in the presence of starch and remains brown (the colour of the iodine solution) in its absence.$5$. Therefore, $Q$ turns blue-black and $R$ remains brown.

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