1. Chapter 7 Cellular Repiration

2. ATP Makes the World Go ‘Round The main source of energy for all cell life is ATP ATP = adenosine triphosphate ATP is made by the cell (mostly in the mitochondria) ATP is made from the food we eat If your cells have no ATP, they cannot function properly

3. The Basics Step 1: Glycolysis – One glucose molecule enters the system – Products are 2 ATP 2 NADH 2 Pyruvate Step 2: Formation of Acetyl Co-A – 2 Pyruvate are consumed from step 1 – Products are 2 NADH 2 CO2 2 Acetyl Co-A Step 3: Krebs Cycle – 2 Acetyl Co-A from step 2 are consumed – Products are 2 ATPs 2 FADH2 4 CO2 6 NADH Step 4: Electron Transport Chain – NADH and FADH2 from step 3 are consumed – 34 ATP are produced

4. Cellular Respiration Cellular Respiration includes steps 3 and 4 – The Krebs Cycle – The Electron Transport Chain This is an aerobic process This all happens within the mitochondria of the cell

7. Fermentation Fermentation is an anaerobic process, just like glycolysis When there is an absence of oxygen, ATP synthesis continues through fermentation, instead of cellular respiration Fermentation has been used to make alcohol, cheese and many other products for centuries