Starch grains turn blue after standing in iodine solution
Answers
Answered by
21
Answer:
yes
Explanation:
iodine turns starch compounds into blue
proving that the compound has starch
Answered by
25
Answer:
The statement is true. Starch does turn blue and even black according to a concentration of iodine as the iodine is added.
Explanation:
Starch is a polymer of glucose attached by glycosidic bonds. This structure is however not as straightforward as that of cellulose. This has branches every 25 to 30 units.
Unlike starch, glycogen has to branch every 7 to 12 units. The iodine molecule gets trapped in these branches and has the repeated reflection of light, which to us it is seems to be in purple or even black.
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