Biological Molecules Tests

Question 1

What is the test for reducing sugars called?

Answer 1

Benedict’s test

Question 2

How do you do Benedict’s test?

Answer 2

1. Cut or grind the food into very small pieces and put this into a test tube
2. Add some water and shake it up to try to dissolve it
3. Add some Benedict’s solution
4. Heat the tube to about 80 °C in a water bath

Question 3

What is a positive result for Benedict’s test?

Answer 3

The mixture changes gradually from blue to brick red.