Quiz on the Digestive System

Why do we need food?

• To improve your mood.

• To make you feel full.

• To provide energy for everything you do.

• To taste good.

What is one function of the digestive system?

• To absorb vitamins only.

• To increase appetite.

• To store food for later.

• To break down food into molecules the body can use.

What is mechanical digestion?

• Food is absorbed into the bloodstream.

• Food is physically broken down into smaller pieces.

• Food is eliminated from the body.

• Food is chemically altered.

What does chemical digestion involve?

• The physical breakdown of food.

• The use of chemicals produced by the body to break down food.

• The storage of food in the stomach.

• The absorption of nutrients.

What helps eliminate waste from the body?

• The respiratory system.

• The nervous system.

• The circulatory system.

• The digestive system.