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Why would you expect to see no violet color when free amino acids (no peptide bonds) are mixed with Biuret reagent?

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter2: Life's Chemical Basis

Section: Chapter Questions

Problem 2SQ: A molecule into which a radioisotope has been incorporated can be used as a(n) ________ . a....

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2. Why would you expect to see no violet color when free amino acids (no peptide bonds)
are mixed with Biuret reagent?

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