Students learn about the organs and major functions of the digestive system, the roles of intestinal bacteria, and about diseases of the digestive system.

Learn how the enzymes in the digestive system help with the digestive process in the human body.

[Free Registration/Login may be required to access all resource tools.] Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive...

What do you know about your digestive system? This site feature factoids and more interesting information concerning this human body system. Trace the path of food from one end to the next.

Find out how bacteria in the digestive system works to digest food.

This site has a concise description of the digestive system with a nice diagram. The site also provides basic definitions of key parts.

Take a look inside the human body's digestive system. This site features diagrams of the digestive tract and each part is accompanied by labels and descriptions. Just select an organ by moving the mouse over its image.

In this interactive site, match the parts of the digestive system with their function.

At this site match parts of the Digestive system with their function in this challenging word search game.

This site has an interactive game that allows students to match key parts of the digestive system with their definition.

This lesson will describe how an enzyme is used to turn substrate into product. It is 4 of 5 in the series titled "Enzyme Function."

Pizza, milk shakes, and ice cream sundaes all contain dairy products, therefore they cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet...

This lesson focuses on the structures of carbohydrates, proteins, and lipids including defining terms, a brief discussion of what they do, and diagrams of each. It also provides a link to a test.

This lesson will describe the process of induced fit, and explain how enzymes use it during chemical reactions. It is 2 of 3 in the series titled "Induced Fit."

This lesson will describe the process of induced fit, and explain how enzymes use it during chemical reactions. It is 1 of 3 in the series titled "Induced Fit."

A brief glossary list of different parts of the digestive system.

This article, written for younger readers, explains cystic fibrosis (CF), an inherited disease that causes the body to produce mucus that's extremely thick and sticky.