Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.

Front

What is the role of glucose in the body?

Back

Glucose is a simple sugar that serves as a primary source of energy for the body's cells.

Front

What is the small intestine's function in digestion?

Back

The small intestine is responsible for the absorption of nutrients from digested food.

Front

What are villi?

Back

Villi are small, finger-like projections in the small intestine that increase the surface area for nutrient absorption.

Front

How do taller villi benefit nutrient absorption?

Back

Taller villi increase the surface area, allowing for more efficient absorption of nutrients.

Front

What happens to the villi in someone with celiac disease?

Back

In someone with celiac disease, the villi become blunted and less effective at nutrient absorption.

Front

What is the first step in nutrient absorption in the small intestine?

Back

Nutrients are transported into the cells lining the villi.

Front

What is the function of the capillaries in the small intestine?

Back

Capillaries pick up absorbed nutrients and transport them into the bloodstream.

Front

What is the significance of the Benedict's solution in experiments?

Back

Benedict's solution is used to test for the presence of glucose; a color change indicates glucose is present.

Front

What percentage of nutrients might come from body stores in someone with celiac disease?

Back

Approximately 33% of nutrients may come from body stores due to celiac disease.