Presentation on theme: "Cellular Respiration & Fermentation Chapter 8. Cell Respiration All organisms need energy from food. They obtain this energy through a process called."— Presentation transcript:
Anaerobic Respiration(Fermentation) Uses NO OXYGEN and produces little energy from glucose – only 2ATP Starts with the process of GLYCOLYSIS in the CYTOPLASM C 6 H 12 O 6 + 2 ATP 2 pyruvic acid + 4 ATP (start up energy)(3-C Compound)(gain of 2 ATP)
Pyruvic Acid Breakdown in Some Organisms Break it down into waste products to be excreted Bacteria/Yeast – break it down into alcohol and CO 2 Mammal Muscle Cells – turns into lactic acid BOTH PROCESSES MAKE 2 ATP in the ABSENCE of OXYGEN
Aerobic Respiration Requires the presence of Oxygen Takes place in the mitochondria COMPLETELY breaks down glucose molecule to generate large amounts of energy (36 ATP)
2 Processes Involved in Aerobic Respiration Krebs (Citric Acid) Cycle Electron Transport Chain
Steps: First, Glycolysis occurs (in the cytoplasm) generating 2 Pyruvic Acids and 2 ATP Next, Oxygen is used to completely breakdown the pyruvic acid and make CO 2 and H 2 O as wastes and 34 more ATP As you can see this is MUCH more efficient than anaerobic respiration, WHY?