The student tests an unknown E and finds it gives a positive test with both Benedict's reagent and biuret reagent.
What is the most likely composition of E?
- A
Pure starch
- Bcheck_circle
A mixture containing both reducing sugar and protein
- C
Pure water
- D
A lipid emulsion
Explanation
Two positive tests indicate the presence of two macromolecule types. Benedict + biuret = reducing sugar + protein. The most likely composition of E is a mixture of both classes.