Digestive System LESSON

Digestive System

by Andrea Lewis

Multiple Choice

The human digestive system allows a person to receive nutrients from the food and water that he or she consumes. What is a necessary step in the process of digestion?

• Adding particles of water to allow food to dissolve

• Breaking down particles of food and water with chemicals

• Breaking down particles of water with basic substances

• Adding particles of waste to particles of food and water

Multiple Choice

A main function of the digestive system is to —

• generate white blood cells to destroy any harmful bacteria in food.

• utilize the lungs for the exchange of carbon dioxide and oxygen.

• generate hormones that are used to stimulate the release of waste.

• utilize the small intestine to absorb nutrients from digested food.

Multiple Choice

The digestive system helps the body to maintain homeostasis by supplying the organs with —

• Waste products and fat

• Toxins and Enzymes

• Water and Energy

• Oxygen and Water