1. Cellular Respiration

2. What is respiration?

3. What is respiration?
When we breathe oxygen into our lungs and release carbon dioxide.
CO2
(Carbon Dioxide)
Oxygen

4. Where does the Oxygen go?

5. Where does the Oxygen go?
Oxygen diffuses into the blood.

6. Where does the Oxygen go?
Oxygen diffuses into the blood.
Blood travels around the body.

7. Where does the Oxygen go?
Oxygen diffuses into the blood.
Blood travels around the body.
Oxygen diffuses into the cells.

8. Plants also respire! They take in oxygen and “breathe” out CO2

9. What happens in the cell?
Food and oxygen combine to form energy.
Sugar + Oxygen  ENERGY + Carbon Dioxide + Water +  + +

10. What happens in the cell?
Food and oxygen combine to form energy.
Sugar + Oxygen  ENERGY + Carbon Dioxide + Water
C6H12O O2  ATP CO H2O +  + +

11. Where does cellular respiration happen in the Cell?
Cellular respiration happens inside the mitochondria in the cell.

12. Respiration in the Cells
Cellular respiration - when our cells use oxygen to break apart sugar in order to release energy (ATP).
It is the opposite reaction of Photosynthesis (Photosynthesis backwards is Cellular Respiration!)

13. Photosynthesis Cellular Respiration
Sunlight + carbon dioxide + water  sugar (food) + oxygen
_______ + _______ + _______  _______ + _______
Cellular Respiration
Sugar (food) + oxygen  energy + carbon dioxide + water
_______ + _______  _______ + _______ + _____

14. Photosynthesis Cellular Respiration Same!!!
Sunlight + carbon dioxide + water  sugar (food) + oxygen
Energy CO H2O  Glucose + O2
Cellular Respiration
Sugar (food) + oxygen  energy + carbon dioxide + water
Glucose O  ATP CO H20

15. Photosynthesis Cellular Respiration
Sunlight + carbon dioxide + water  sugar (food) + oxygen
_______ + _______ + _______  _______ + _______
Cellular Respiration
Sugar (food) + oxygen  energy + carbon dioxide + water
_______ + _______  _______ + _______ + _____

16. ATP and Sunlight are just different forms of Energy
Photosynthesis
Sunlight + carbon dioxide + water  sugar (food) + oxygen
Energy CO H2O  Glucose + O2
Cellular Respiration
Sugar (food) + oxygen  energy + carbon dioxide + water
Glucose O  ATP CO H20
Same!!!
ATP and Sunlight are just different forms of Energy

17. Do plant cells do cellular respiration too?
YES!! Why?
Plants produce glucose (energy storing sugar) through photosynthesis, but they still need to make that sugar usable for the cell.
They use the process of cellular respiration to make usable energy (ATP) for the cell.
This process also happens in the mitochondria of the plant cells.