Respiration

Respiration

Multiple Choice

Review:

What is the last place that air goes inside the lungs?

• Bronchi

• Bronchioles

• Alveoli

• Trachea

Oxygen in the Body

• Oxygen is used by every cell in the body to produce energy.

• The process of using oxygen to make energy is called respiration.

• Oxygen gets turned into carbon dioxide during respiration.

Oxygen in the Body

• Oxygen needs to get to other parts of the body to give energy.

• It is transported around the body in the bloodstream.

Gas Exchange

• Oxygen enters the bloodstream when it reaches the alveoli in the lungs.

• The oxygen can then travel all over the body.

Gas Exchange

• Carbon dioxide gets transported to the lungs from all over the body.

• The carbon dioxide leaves the blood into the lungs so it can be breathed out.

Multiple Choice

Check your understanding:

What is respiration?

• The energy you get from oxygen

• The process of using oxygen to get energy

• The process of breathing in to get oxygen

• The movement of oxygen around the body

Multiple Choice

The body system that takes in food that contains energy is the:

• Circulatory System

• Respiratory System

• Muscular System

• Digestive System

Multiple Choice

The body system that brings in oxygen to break down food is the:

• Circulatory System

• Respiratory System

• Muscular System

• Digestive System

Multiple Choice

The body system that allows oxygen to reach all parts of the body is the:

• Circulatory System

• Respiratory System

• Muscular System

• Digestive System

Multiple Choice

The body system that uses energy from respiration to move is the:

• Circulatory System

• Respiratory System

• Muscular System

• Digestive System

Open Ended

Do you think the body systems work separately, or do they work together to keep you alive? Give reasons for your answer.