Quiz on Human Respiration for 6th Graders

🫁 Quick Study Guide

• 👃🏽 Nose: Air enters your body through your nose. It's filtered and warmed up here!
• 💨 Trachea (Windpipe): The tube that carries air down to your lungs.
• 🌿 Bronchi: The trachea splits into two bronchi, one for each lung.
• 🎈 Lungs: These are the main organs of respiration where oxygen is taken in and carbon dioxide is released.
• 🌬️ Alveoli: Tiny air sacs in the lungs where gas exchange occurs. Oxygen goes into the blood, and carbon dioxide comes out.
• 💪🏽 Diaphragm: A muscle that helps you breathe in and out. It moves up and down to change the space in your chest.
• 🔄 Respiration Equation: $Oxygen + Glucose \rightarrow CarbonDioxide + Water + Energy$

🧪 Practice Quiz

1. Which organ is the primary site of gas exchange in humans?
   1. A. Trachea
   2. B. Bronchi
   3. C. Lungs
   4. D. Diaphragm
2. What is the name of the air sacs in the lungs where oxygen and carbon dioxide are exchanged?
   1. A. Bronchioles
   2. B. Alveoli
   3. C. Trachea
   4. D. Diaphragm
3. Which muscle plays a major role in breathing by contracting and relaxing to change the volume of the chest cavity?
   1. A. Biceps
   2. B. Triceps
   3. C. Diaphragm
   4. D. Cardiac muscle
4. What gas do humans breathe in?
   1. A. Carbon Dioxide
   2. B. Nitrogen
   3. C. Oxygen
   4. D. Hydrogen
5. What gas do humans breathe out?
   1. A. Oxygen
   2. B. Nitrogen
   3. C. Carbon Dioxide
   4. D. Hydrogen
6. Which part of the respiratory system filters and warms the air we breathe?
   1. A. Lungs
   2. B. Nose
   3. C. Trachea
   4. D. Diaphragm
7. The trachea branches into two:
   1. A. Alveoli
   2. B. Bronchioles
   3. C. Bronchi
   4. D. Diaphragm