A student conducted an experiment on an unknown food to determine the presence of macromolecules. The results are as follows: Benedict’s test= blue. Iodine test= dark red. Biuret test= violet, Susan IV= dark red. Using the indicator chart below and the information in the chart above, which macromolecules were present? Select all that apply.
a. Carbohydrates
b. Lipids
c. Nucleic acids
d. Proteins
