What is the electron transport chain?, The electron transport chain is a cluster of proteins that transfer electrons through a membrane within mitochondria to form a gradient of protons that drives the creation of adenosine triphosphate (ATP). ATP is used by the cell as the energy for metabolic processes for cellular functions., Where Does the Electron Transport Chain Occur?, During the process, a proton gradient is created when the protons are pumped from the mitochondrial matrix into the intermembrane space of the cell, which also helps in driving ATP production. Often, the use of a proton gradient is referred to as the chemiosmotic mechanism that drives ATP synthesis since it relies on a higher concentration of protons to generate “proton motive force”. The amount of ATP created is directly proportional to the number of protons that are pumped across the inner mitochondrial membrane., Steps of the Electron Transport Chain, These four complexes actively transfer electrons from an organic metabolite, such as glucose. When the metabolite breaks down, two electrons and a hydrogen ion are released and then picked up by the coenzyme NAD+ to become NADH, releasing a hydrogen ion into the cytosol., 2. What component(s) is passed to the first complex in the electron transport chain?, A. NADH + H+, 3. Where is the higher concentration of protons while the electron transport chain is activated?, Intermembrane space, What breaks down the Krebs cycle?, In summary, the Krebs Cycle completes the breakdown of glucose which began with glycolysis. Its chemical reactions oxidize all six of the original carbon atoms to CO2, and capture the energy released in 2 ATP, 6 NADH, and 2 FADH2.Dec 5, 2014, What 3 things does the Krebs cycle produce?, Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH2, and ATP or GTP.

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