California
5. Respiratory System
5.1 Gas Exchange, Breathing and cellular respiration
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5th Grade Science
Body Systems
5. Respiratory System
5.1 Gas Exchange, Breathing and cellular respiration
Breathe In, Power Up: How Your Body Uses Oxygen to Make Energy
You will discover how every breath you take fuels your cells, how gas exchange works in your lungs, and how cellular respiration turns glucose and oxygen into the energy your body needs.
What You'll Learn
You breathe air through your nose down to your alveoli.
You exchange oxygen and carbon dioxide inside your lungs.
Your cells use oxygen and glucose to release usable energy.
You can connect breathing to circulatory and digestive systems.
What You'll Practice
1
You will identify respiratory structures and their specific body functions.
2
You will explain how cellular respiration produces energy and waste.
3
You will distinguish between breathing and cellular respiration processes.
Why This Matters
Understanding how gas exchange and cellular respiration work helps you explain why every cell in your body needs oxygen and how your respiratory and circulatory systems keep you alive and energized.
This Unit Includes
Practice exercises
Learning resources
Skills
Gas Exchange
Cellular Respiration
Alveoli
Diaphragm
Breathing
CA Curriculum Aligned