Lily visits her family doctor because she experiences an upset stomach after drinking milk. The doctor tells her that this symptom is caused by a lack of the enzyme lactase. Lactase breaks down lactose, the sugar in milk which is made of several parts. What does lactose break down into?

Glucose

Explanation:

The lactose is broken down by the Lactase in the intestine to form a substance called glucose. Glucose is a form of sugar like substance and is necessary for the human body.

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Explanation:

sugar is broken down by lactase enzyme into glucose...and other starch items are also broken down into glucose...thus helps the highly sugar containing foods to be broken down into smaller particles thus helping the food to get digested...properly...

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