Lactase & Lactose Intolerance Flashcard

Front

What is lactase persistence?

Back

Lactase persistence is the continued activity of the lactase enzyme beyond early childhood, allowing individuals to digest lactose in dairy products.

Front

Which population is most likely to exhibit lactase persistence?

Back

Northern European populations are most likely to exhibit lactase persistence.

Front

What is the primary function of the lactase enzyme?

Back

The primary function of the lactase enzyme is to break down lactose into glucose and galactose.

Front

At what temperature does lactase work best?

Back

Lactase works best at room temperature.

Front

What genetic change is associated with lactase persistence?

Back

A mutation in a regulatory element near the lactase gene is commonly associated with lactase persistence.

Front

What is lactose?

Back

Lactose is a sugar found in milk and dairy products, composed of glucose and galactose.

Front

What happens to lactose in individuals with lactose intolerance?

Back

In individuals with lactose intolerance, lactose is not properly digested, leading to gastrointestinal symptoms.

Front

What is the role of enzymes in digestion?

Back

Enzymes speed up chemical reactions, including the breakdown of food substances into absorbable units.

Front

What are the symptoms of lactose intolerance?

Back

Symptoms of lactose intolerance can include bloating, diarrhea, and abdominal pain after consuming dairy products.

Front

How can lactose intolerance be managed?

Back

Lactose intolerance can be managed by reducing dairy intake, using lactose-free products, or taking lactase supplements.