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RESPIRATION BREAKDOWN!!! STEP: GLYCOLYSIS (one 6 carbon sugar molecule) FERMENTATION (Anaerobic respiration) KREBS CYCLE also known as the Citric Acid Cycle (Aerobic respiration) ELECTRON TRANSPORT CHAIN (Aerobic respiration) LOCATION: Cytoplasm MAIN ACTIONS: PRODUCTS: ATP YIELD 2 ATP None Cytoplasm Mitochondrial matrix Cristae of mitochondria 2 ATP Approx. 36 ATP Glycolysis Glycolysis literally means "_________splitting." In glycolysis, the 6 carbon sugar glucose is split into 2 molecules of pyruvate, also called pyruvic acid. This process produces a net gain of ______ ATP molecules. The resulting molecules of pyruvate each have 3 carbon atoms. Glycolysis takes place in the cell's _____________. The remainder of cellular respiration takes place in organelles called __________________. The Krebs Cycle The Krebs Cycle takes place in the fluid-filled area inside the inner membrane of the mitochondria known as the _________________________. Some ________ and other energy carrying molecules are produced here. The gas __________________is a byproduct of this process. The Electron Transport Chain Most of the ______ is produced in this last step of cellular respiration. Electron transport takes place in the infoldings of the inner-membrane of the mitochondria. These infoldings are called ____________. At the end of electron transport, ___________ combines with hydrogen ions and __________ (e-) to form _____. (Hint) ½O2 + 2H+ + 2e- → H2O Fermentation In the absence of __________, the cell resorts to anaerobic metabolism. In animal cells, pyruvate is converted to ________ acid. In yeast and bacteria, the Overall Process pyruvate is often converted to ___________. In both cases, no new ATP is C6H1206 + __02 → __CO2 + __H20 + ~36ATP produced. Finish filling in equation above. Aerobic Respiration Kreb’s Cycle Electron Transport Chain