What is the electron transport string?

Electron transport chain is a number of proteins built into cellular mitochondria, which transmits energy from organic substrates by means of oxidation reactions. These oxidative reactions of the shuttle ions (protons) and electrons along the chain along with the energy it holds. Aerobic respiration and energy production take place in cell mitochondria and the transport chain is the last step in this process. Here, most of the energy -rich molecules are formed. The energy -moved chain is stored in adenosine triphosphate or ATP molecules, which is a cellular source of the energy of the human body. The chain helps in the production of this gradient, although other cellular processes contribute to its and maintaining. The enzyme called ATP syntase is built into the mitochondrial membrane and the pumping of hydrogen ions through the enzyme causes it to build, etc. This can be found at different points along the electron transport chain, not only at the end, which further increases its efficiency.

Oxidative reducing reactions in the electron transport chain occur one by one. Oxidation is always followed by a reduction followed by further oxidation. The electrons are taken from the molecule in the oxidation reaction and added to the molecule in the reduction reaction. In other words, the charge of the molecule is increased in the oxidation reaction and decreased by a reduction reaction. The final molecule in the chain is an oxygen molecule that acts as an electron acceptor and cleans electrons and protons by binding them to water molecules.

The internal membrane of the mitochondria provides a two -dimensional surface for the electron transtener of the port that will function, and the protein components of the string are not fixed in place. All components can move in the membrane and there are many copies of each component in the area. Because they move in two -dimensional space, there is a higher chance that each string component will successfully interact with another molecule in the string. Chain moleculesThe ingredients are all built into the mitochondrial membrane; There is no explicit directional flow of energy. This dynamic and flexible orientation allows maximum efficiency and uses the most surface surfaces of the membrane.