5th Grade: Chapter 5 Lesson 2

Multiple Choice

Why is the respiratory system important for the human body?

• It helps digest food

• It helps you breathe and exchange gases

• It controls movement

• It produces hormones

Multiple Choice

Which is NOT a function of the respiratory system?

• it warms the air
• it exchanges O₂ and CO₂
• It pumps blood to the organs
• it creates sound through the larynx

Multiple Select

Which of the following are parts of the respiratory system?

• Trachea

• Diaphragm

• Bronchioles

• Heart

Multiple Choice

What is the function of the bronchi?

• Transport air from nose to lungs

• Transport air from trachea to lungs

• Transport air from lungs to alveoli

• Transport air from alveoli to blood

Fill in the Blanks

Oxygen enters your body when you

and goes to your lungs.

Open Ended

Explain how oxygen gets from the air into your body's cells, using information from the respiratory system.

Multiple Choice

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide