Science quiz illustration

The Human Body โ€“ Respiratory System

Science ยท Grade 5 ยท Week 24 ยท 25 questions

The human body is an incredible system of organs working together. Understanding how your body systems function helps you appreciate the complexity of life and make better health choices.

What you'll practise

  • Identify major organs and their functions
  • Explain how body systems work together
  • Understand the structure of key body systems
  • Describe common health conditions and prevention
All 25 questions in this The Human Body โ€“ Respiratory System quiz

Grade 5 Science โ€” The Human Body โ€“ Respiratory System: 25 practice questions with instant scoring and explanations.

  1. What is respiration?
  2. What is the main purpose of the respiratory system?
  3. What are the main organs of the respiratory system?
  4. What is the trachea or windpipe?
  5. What are the lungs?
  6. What is a bronchus?
  7. What are bronchioles?
  8. What are alveoli?
  9. What process occurs in alveoli?
  10. What is the diaphragm?
  11. How does the diaphragm work?
  12. What is breathing in called?
  13. What is breathing out called?
  14. How many times per minute do adults typically breathe?
  15. What controls the breathing process?
  16. What gas do we need to take in during breathing?
  17. What gas do we need to release during breathing?
  18. How does oxygen enter the bloodstream from the lungs?
  19. What happens to carbon dioxide collected from body cells?
  20. Why do our breathing rates increase during exercise?
  21. What is a cough?
  22. What is a sneeze?
  23. What is asthma?
  24. What is the purpose of mucus in the respiratory system?
  25. What is the epiglottis?
Question 1 of 250 correct so far

What is respiration?