Understanding Digestion

Where does the digestion process actually begin?

• In the large intestine

• In the esophagus

• In the mouth

• In the stomach

What role does saliva play in digestion?

• It only helps in swallowing

• It starts breaking down food chemicals

• It neutralizes stomach acid

• It absorbs nutrients

How is the stomach best described in terms of its function?

• A natural blender full of acid

• A storage sack for food

• A filter for nutrients

• A tube for transporting food

What is the approximate length of the small intestine?

• 10 feet

• 20 feet

• 15 feet

• 5 feet

What happens to the food mixture in the large intestine?

• Nutrients are extracted

• It is mixed with gastric juices

• Water is absorbed from it

• It is further digested