Carry out the \"testing for proteins\" experiment using the protocol powerpoint

Question

Carry out the "testing for proteins" experiment using the protocol powerpoint I provided Upload your picture from Step 7 here (the Selected Answer IMG_1224[1] JPG Attach File Egg albumin is ___ and therefore I would predict that test tube #1 will appear ___ at the end of the experiment Again, you may need to do some very basic research on your own to get the first part of this answer a protein, purple a lipid, blue a nucleic acid, purple a carbohydrate, blue Upload your picture from Step 9 here (the photo AFTER adding 5 drops of Buret solution to each tube)

Explanation / Answer

Answer:

7. (a)

Egg albumin is a protein and therefore I would predict that the test tube#1 will appear purple at the end of the experiment.

The experiment discussed here appears to be the biuret test for identification of proteins. Biuret is a reagent consisting of copper sulfate and potassium hydroxide and is generally blue in colour. Upon reaction with peptide bonds, the colour of the solution turns purple.

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