A girl took a coleus leaf which was green and purple in colour. She bleached and washed it in cold water. Then she added a few drops if iodine it. What will she observe?
(A) Only purple portion of the leaf blue-black
(B) Only purple portion of the leaf turns yellow
(C) Only green portion of the leaf turns blue-black
(D) Only green portion of the leaf turns red
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Answer:
only purple portion of the leaf blue black
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3
Answer:
Explanation:
Only green part of the leaf has starch (as a result of photosynthesis). Starch turns blue- black in the presence of iodine.
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