1. Cellular Respiration Unit 5-2 Notes Mr. Hefti – Pulaski Biology

2. 1. What is cellular respiration? Using O 2 to release energy from C 6 H 12 O 6 Makes “ATP” (pure biological energy) Enzyme controlled process

3. CO 2 – 0 2 Cycle

4. 2. Which organisms? All organisms – Even producers!!!

5. 3. Where? Mitochondria

6. 4. The chemical reaction C 6 H 12 O 6 + 6O 2  6H 2 O + 6CO 2 + ATP “Glucose and oxygen yields water, carbon dioxide and ATP energy.”

7. 5. When? “Always” Rate depends upon organism’s level of activity

8. 6. Other important facts… Breathing ≠ respiration; breathing = physical process Other organisms take in oxygen through gills (fish), spiracles (insects), or simply diffusion through the cell membrane

9. 7. Importance ATP supplies energy for all life functions