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

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

CO 2 – 0 2 Cycle

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

3. Where? Mitochondria

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.”

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

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

7. Importance ATP supplies energy for all life functions