Glycolysis, Kreb's Cycle, And Electron Transport Chain

Glycolysis, the Kreb’s Cycle, and the Electron Transport Chain all are responsible for helping us maintain energy throughout our cells. Glycolysis produces Pyruvate and ATP which is an important part of the Kreb’s Cycle. This starts off with the investment phase, 2 ATP’s drop off 2 p’s in order to split glucose in half. The enzyme then turns it into 1,6 Fructose Biphosphate. Step 3 is accounting that you have 2 of these molecules because you invested 2 ATPs which turned into 2 ADPs. Part 2 is the Harvest phase. G3P Glyceraldehyde 3 phosphate goes into Step 4. Step 4 takes 2 Hydrogens from the 2 molecules which adds with the 2 NAD creating 2 NADHs. SInce our body can only use ATP this energy “goes to the bank” creating 2 Pyruvate, 4 ATP, and 2 NADH . This takes place in the cytoplasm of all cells. The next process is the Kreb’s cycle. The Kreb’s Cycle takes place in the matrix of the mitochondria. 2 Pyruvates go into the mitochondria. If there is 02 it begins the cycle, if not it turns into lactic acid. The Kreb’s cycle uses the carbons in pyruvate releasing CO2 and NADH in the process. This Co2 mixes with other carbon making Citric Acid. The citric acid continues this

This takes place in the Cristae of the mitochondria. The Electron transport train has enzymes that take the Hydrogens from the energy and create ATP with it. This starts with the energy acting like a taxi cab dropping its hydrogen off at the first enzyme. This enzyme breaks the electron and proton up. The electron goes through the inner membrane of the mitochondria while the proton follows. Different types of energy go into different enzymes. They all end up at the ATPASE where the protons and electrons reconnect. This cause the enzyme to spn releasing energy. Along with this hydrogens and oxygens get connected forming H2O molecules. This then goes through cellular respiration again, back to glycolysis. This process creates 38 ATP and happens continuously throughout the