BI-1418
Food tests
Biology · Secondary 4 · Easy · Food tests
A student adds Biuret solution to four food samples. Which observation shows that protein is absent in a sample?
- Solution changes from blue to purple.
- Solution remains blue.
- Solution changes from blue to pink.
- Solution changes from blue to brick-red.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.