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The electron transport chain occurs in the inner mitochondrial membrane in eukaryotic cells, where its components are embedded to facilitate electron transfer and proton pumping. In prokaryotes, which lack mitochondria, the chain takes place in the plasma membrane. This localization allows the generation of a proton gradient, which is necessary for ATP synthesis.
0 Answers Oxygen acts as the final electron acceptor in the electron transport chain. After electrons have been passed through the protein complexes, they are transferred to oxygen, which reacts with free protons to form water. This step is crucial because it ensures the continuation of electron flow through the chain, preventing a bottleneck that would halt ATP production and cellular respiration.
0 Answers The ETC is located in the inner mitochondrial membrane in eukaryotes. This membrane separates the mitochondrial matrix from the intermembrane space. The location is critical because the membrane’s impermeability to protons allows the establishment of a proton gradient. In prokaryotes, the chain is found in the plasma membrane, where it serves a similar function in ATP production.
0 Answers The Krebs cycle occurs in the mitochondrial matrix, the innermost compartment of the mitochondrion, where enzymes for the cycle are located. The electron transport chain, in contrast, is embedded in the inner mitochondrial membrane. This spatial separation allows the products of the Krebs cycle, NADH and FADH2, to feed electrons directly into the chain for energy production.
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Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan