1. We combine the oxygen we breathe with the chemicals in the food we eat to do what?
- To produce energy for our cells through cellular respiration.
2. When you contract your diaphragm (move it down), what happens to your lungs? What happens when you relax it?
- Contracting the diaphragm pulls air into the lungs (inhalation). Relaxing it pushes air out of the lungs (exhalation).
3. Your lungs have as much surface area as a ____________.
- Tennis court.
4. Why is the right lung bigger than the left lung?
- The right lung is bigger because the heart takes up space on the left side of the chest cavity.
5. When you exercise, do you breather harder? WHY?
- Yes, because your muscles need more oxygen and produce more carbon dioxide, so your body increases breathing rate to meet this demand.
6. What molecule is energy stored in inside your body?
- ATP (adenosine triphosphate).
7. How are the lungs like bagpipes?
- Like bagpipes, lungs inflate and deflate to move air in and out; the diaphragm acts like the bellows that push air through the system.
8. What is the purpose of mucus?
- Mucus traps dust, germs, and other particles to keep them from entering the lungs and helps moisten the airways.
9. During cellular respiration, what is released?
- Carbon dioxide, water, and energy (ATP).
10. Which cells in your body does cellular respiration?
- All living cells in your body perform cellular respiration.
11. In cellular respiration: Food + Oxygen => ____________
- Carbon dioxide + Water + Energy (ATP).
12. What structure does a fish use to breathe and where does it get its oxygen from?
- Fish use gills to breathe, extracting dissolved oxygen from water as it flows over the gill filaments.
Parent Tip: Review the logic above to help your child master the concept of bill nye outer space worksheet.
