Galactose

Definition

Galactose is a simple sugar (monosaccharide) that is part of the carbohydrate family. It is commonly found in milk and dairy products, often bonded with glucose to form lactose.

5 Must Know Facts For Your Next Test

1. Galactose is less sweet than glucose and fructose.
2. It is converted into glucose by the liver to be used as energy.
3. Galactosemia is a genetic disorder where the body cannot properly process galactose.
4. Galactose can be obtained from the hydrolysis of lactose during digestion.
5. Sources of galactose include dairy products, legumes, and some fruits.

Review Questions

• What are common dietary sources of galactose?
• How does the body utilize galactose once it is ingested?
• What is the significance of galactose in relation to lactose?

Related terms

Lactose:

A disaccharide composed of one molecule each of glucose and galactose, commonly found in milk.

Glucose:

A simple sugar that serves as an important energy source for living organisms and is a component of many carbohydrates.

Galactosemia: A rare genetic metabolic disorder affecting an individual's ability to metabolize galactose properly.