The Digestive System

Multiple Choice

Why is the digestive system important for our body?

• It helps us move our muscles.

• It breaks down food for energy, absorbs nutrients, and removes waste.

• It helps us breathe.

• It controls our heartbeat.

Open Ended

Describe the role of the mouth in the process of digestion.

Multiple Choice

Which of the following best describes the difference between mechanical digestion and chemical digestion?

• Mechanical digestion breaks food into smaller pieces using physical force, while chemical digestion uses special juices and enzymes to break food into nutrients.

• Mechanical digestion uses enzymes to break down food, while chemical digestion uses teeth and muscles.

• Mechanical digestion happens only in the stomach, while chemical digestion happens only in the mouth.

• Mechanical digestion absorbs nutrients, while chemical digestion forms solid waste.

Open Ended

Explain how the mouth, stomach, and small intestine work together to digest food and absorb nutrients.

Open Ended

After learning about the mouth's role in digestion, what questions do you still have about how the digestive system works?

Multiple Choice

What is the main function of the digestive system?

• To break down food for energy, absorb nutrients, and remove waste

• To pump blood throughout the body

• To control movement and balance

• To help us breathe