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likoan [24]
3 years ago
5

To test for the presence of starch, iodine can be used. A positive reaction results in a black color. A dialysis bag filled with

starch solution and secured on both ends is placed in iodine solution. After 30 minutes the dialysis bag appears black. Based on this information, what most accurately describes what happened?
Biology
1 answer:
Bezzdna [24]3 years ago
5 0

Answer:

Diffusion.

Explanation:

According to the information given before the example in the question and considering the fact that the bag was secured on both ends before being placed in the solution, provided that there were no holes on the surface of the bag, the iodine solution could have diffused through the bag into the starch solution hence the color change to black after 30 minutes.

I hope this answer helps.

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Answer:

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Explanation:

The body is made of so many cells and without cell specialzation, the cells would not know what to do, they would all be the same. The liver is so different from the skin from the eyes, from the tongue, and so on. That is why we need it so our body can do what it is supposed to do.

Thatś only really one example but I hope it helps!

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