Thaizz
Answered

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To test for protein, you added Biuret solution and observed color changes. Suppose that the color data below was observed.

A 3-column table has 1 rows. The first column is labeled Gelatin (+ control) with entry pink/purple. The second column is labeled
Water (negative control) with entry pink/purple. The third column is labeled Mystery food sample with entry blue.

The data above indicate an error. How do you know? What might have caused the error?

Sagot :

Answer:

When tested for proteins neither gelatin or water was not pink/purple

Explanation:

credit to person who commented on question above

Colana

Answer:

The water should not be pink/purple because water should test negative for protein. The water should actually have turned blue, because Biuret solution is blue. Someone may have mislabeled the test tube with water. The water may have been contaminated with a protein.

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