Cellular Respiration and ATP Production in Mitochondria

1. Review 9.1 • ______ MATRIX • ______ INTERMEMBRANE SPACE • ______ CYTOPLASM • ______ OUTER MEMBRANE • ______ INNER MEMBRANE (CRISTAE) • ______ Place where GLYCOLYSIS happens D B E A C E

2. Review 9.1 • Name the TWO new high energy electron carriers used during cellularrespiration that are different than the one used for photosynthesis. _________ _________ • How many ATP molecules are added to get glycolysis started? _________ • Since glycolysis produces 4 ATP molecules, this results in a NET GAIN of _____ ATP’s NAD FAD 2 2

3. KREBS CYCLE &ELECTRON TRANSPORTChapter 9-2 http://www.clickatutor.com/mitochondria.jpg http://www.therunningdoctor.com/runinjuries.htm

4. REMEMBER:The “fork in the road” happens following glycolysis. The presence or absence of _______________decides which path it takes next. OXYGEN

5. Image from BIOLOGY Miller and Levine; Prentice Hall Publishing KREBS CYCLE _______________ follows glycolysis if oxygen is present

6. REMEMBER: Glycolysis happens in the ________________ outside the mitochondria. Krebs cycle happens in _____________ inside the mitochondria CYTOPLASM MATRIX

7. Krebs cycle is also known as the ________ ________ cycle, because _________ __________ is one of the first products. Krebs cycle is the ____________ stage of cellular respiration. What was the first stage? Citric acid Citric acid second Glycolysis

8. Begins when _______________ enters the _________________ PYRUVIC ACID MITOCHONDRION Diagram by Riedell

9. Pyruvic acid = ___ carbon atoms 3 • One carbon atom will becomes part of ________ __________and eventually released into the atmosphere. • The other two carbon atoms are used in reactions to convert NAD+ to NADH and FAD to FADH2 • These molecules carry the high energy electrons to the _________ _________chain carbon dioxide electron transport

10. WHERE DO THESE GO? Carbon dioxide is released into the ________________ High energy electron carriers move into the ____________________ atmosphere ELECTRON TRANSPORT CHAIN

11. ELECTRON TRANSPORT ___________ ____________ is the third stage of cellular respiration.

12. Electron Transport • Located on inner membrane of _______________ • Uses high-energy electrons from the Krebs cycle to convert ADP into ______ mitochondrion ATP

13. 2 • If anaerobic, the product of glycolysis is _______ ATP molecules • If aerobic, the cell can extract many more ATP molecules. The Krebs cycle and the electron transport chain enable the cell to produce an additional _______ ATP molecules. • Glycolysis + Krebs+ ET chain equals of total of ________ ATP molecules 34 36