You will prepare the following solutions for this activity:

milk and water
milk and lactase enzyme
milk and lactase enzyme heated to boiling
sucrose and water
sucrose and lactase enzyme
sucrose and lactase enzyme heated to boiling
You will test these solutions for the presence of glucose by using glucose test strips.

Question 1

Study the list of solutions. The glucose strips will change color when glucose is present in the solution. Use the diagram to predict whether the test strips will change color for the solutions listed. Write your prediction in the answer space.

an illustration showing the molecular structure of fructose, glucose, galactose, sucrose, and lactose