Why is digestion important?

12 Foods That Contain Natural Digestive Enzymes
This is why mangoes become sweeter as they start to ripen 9. See all other plans. Bananas are another fruit that contains natural digestive enzymes. Bile is stored in the gallbladder to help process fats that enter the small intestine. This will give them the big picture. Papaya or pawpaw is another tropical fruit that is rich in digestive enzymes. As the benchmark for this lesson states, it's important for students to realize that the indigestible parts of food are eliminated and that people obtain energy and materials for body repair and growth from food.

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Nutrition 1: Food and the Digestive System

Another passion is sharing and discussing this information with others. You stick your food or fluid in your mouth and then stuff comes out as poop or pee. Any idea of what happens in-between? This quiz was expert written by Eugene Fenster. What happens to food once you consume it?

Nutrition is a branch of science that deals with the interaction of nutrients and other substances in food that we eat in relation to growth, weight control, reproduction, and overall health.

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We're always trying to improve our content. If you wouldn't mind, could you give us more details about why this question wasn't great? Thanks for your feedback! This is a tough one. They should get into groups and cut out parts of the digestive system from colored construction paper as they make their way through the article. On each organ, students can write a one- to two-sentence description of the organ's purpose.

In the end, they will have a recreated digestive system of their own. Another way to approach this is for you to hand each group a "puzzle" which would consist of the different parts of the digestive system already cut out.

Students could sequence the digestive system as they read through the site. This will give them the big picture. Once at the activity, students should review what they've learned by clicking on the link, "Building Your System. As the benchmark for this lesson states, it's important for students to realize that the indigestible parts of food are eliminated and that people obtain energy and materials for body repair and growth from food.

To continue to illustrate these ideas, students should follow the final link on The Learning Site, "Food Path. In addition, assess student understanding of the digestive system by how well they recreated the digestive system in the Development, after reading the KidsHealth article. To learn more about the food groups and how vitamins and minerals help the body function properly, visit the second and third lessons in this Science NetLinks series:.

By William Crochot vie Wikimedia Commons. Your students can go to All Systems Are Go! Did you find this resource helpful? Working together, nerves, hormones , bacteria, blood, and the organs of your digestive system digest the foods and liquids you eat or drink each day. Digestion is important because your body needs nutrients from food and drink to work properly and stay healthy. Proteins , fats , carbohydrates , vitamins , minerals , and water are nutrients.

Your digestive system breaks nutrients into parts small enough for your body to absorb and use for energy, growth, and cell repair. MyPlate offers ideas and tips to help you meet your individual health needs. Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, or both.

Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed. Your large intestine absorbs water, and the waste products of digestion become stool. Nerves and hormones help control the digestive process.

Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ. The muscle behind the food contracts and squeezes the food forward, while the muscle in front of the food relaxes to allow the food to move.

Food starts to move through your GI tract when you eat. When you swallow, your tongue pushes the food into your throat. A small flap of tissue, called the epiglottis, folds over your windpipe to prevent choking and the food passes into your esophagus. Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins. When food reaches the end of your esophagus, a ringlike muscle—called the lower esophageal sphincter —relaxes and lets food pass into your stomach.

After food enters your stomach, the stomach muscles mix the food and liquid with digestive juices. The stomach slowly empties its contents, called chyme , into your small intestine. The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

As peristalsis continues, the waste products of the digestive process move into the large intestine. Waste products from the digestive process include undigested parts of food, fluid, and older cells from the lining of your GI tract. The large intestine absorbs water and changes the waste from liquid into stool. Peristalsis helps move the stool into your rectum. The lower end of your large intestine, the rectum, stores stool until it pushes stool out of your anus during a bowel movement.

Watch this video to see how food moves through your GI tract. As food moves through your GI tract, your digestive organs break the food into smaller parts using:. The digestive process starts in your mouth when you chew. Your salivary glands make saliva , a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach.

Saliva also has an enzyme that begins to break down starches in your food.

What is the digestive system?