2.2 The Digestive System

Question 1

What is the role of the mouth in digestion?

Answer 1

The mouth breaks down food mechanically through chewing and starts chemical digestion with enzymes in saliva

Question 2

What is the role of the stomach in digestion?

Answer 2

The stomach uses acid and enzymes to break down food, especially proteins

Question 3

What is the role of the small intestine in digestion?

Answer 3

The small intestine absorbs nutrients from digested food into the bloodstream

Question 4

What is the role of the large intestine?

Answer 4

The large intestine absorbs water and salts from the remaining undigested food

Question 5

What is bile?

Answer 5

A substance produced in the liver that helps emulsify fats for digestion

Question 6

Where is bile stored?

Answer 6

Bile is stored in the gall bladder

Question 7

What is the role of enzymes in digestion?

Answer 7

Enzymes speed up the breakdown of large food molecules into smaller molecules that can be absorbed

Question 8

What is the role of the pancreas in digestion?

Answer 8

The pancreas produces digestive enzymes and secretes them into the small intestine