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Electron Transport Chain Mechanism in Mitochondria

The electron carriers of the respiratory chain are organized into the membrane embedded supra molecular complexes that can be physically separated. Gentle treatment of the inner mitochondrial membrane with detergents allows the resolution of four unique electron – carrier complexes, each capable of catalyzing electron transfer through a portion of the chain. Complex I and […]

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Electron Transport Chain Components in Mitochondria

There are five different kinds of electron carriers that participate in the transport of electrons from substrates as they are oxidized in the mitochondria. In addition, Cu+2 is present and functions in the enzyme, Cytochrome oxidase, that catalyzes the reduction of O2. Mitochondrial Electron Transport Chain components: (1) Nicotinamide Nucleotides: Two of the oxidation in […]

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What is Mitochondria in Biological Sciences

Mitochondria were first observed by “Altmann” in 1894 who described as “bioblasts”. Benda (1897) called them “mitochondria”. (mitoG =thread; chondrionG=granule). The number of mitochondria varies with the cell type and functional stages. In eukaryotes, approximately 2000 mitochondrias occupies one-fifth of its total cell volume. The mitochondrial chemical composition is concerned, mitochondria consist of 65-70% proteins, 25-30% […]

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