Biology, asked by shashukodape, 11 months ago

Starch grains turn blue after standing in iodine solution​

Answers

Answered by kundan1212
21

Answer:

yes

Explanation:

iodine turns starch compounds into blue

proving that the compound has starch

Answered by mariospartan
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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