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10 Cards in this Set
- Front
- Back
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what is the purpose of the elctron transport chain?
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to use the electrons carried by the NADH and FADH2 to provide energy that will create ATP
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where does the electron transport chain take place?
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the inner membrane of the mitchondria
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the first step of the e- transport chain...
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2 e- are donated from either NADH or FADH to a protein on the inner membrane
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2nd step of the ETC
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these 2 e- are passed from one membrane protein to the next on the inner membrane along a chain
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third step of ETC
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the energy provided from these passed e- are used to pump h+ ions from the matrix to the innermembrane space, creating a high [H+ ion] within the innermembrane space of the matrix
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4th step of the ETC
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bc there is a higher [h+ ion] in the innermembrane space than in the matrix, the h+ ions will want to move out of the innermembrae space to the matrix where the [H+ ion] is lower
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5th step of the ETC
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the H+ ions will move through a protein called ATP synthase in order to balance out the concentration
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6th step of the ETC
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when this happens, the ATP synthase will turn and attach a phospate group to an ADP molecule creating ATP in the matrix
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7th step of the ETC
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when all of the electrons have been passed down the ETC, the final electron acceptor is oxygen
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8th step of the ETC
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the 2 e- combine with one O2 molecule and 4H+ ions to create 2H20 molecules
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