oxidative phosphorylation/ETS

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Last updated 10:34 PM on 10/13/26
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5 Terms

1
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where does the electron transport system/ oxidative phosphorylation occur

in the mitochondria

2
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how many atp molecules are produced from the electron transport system

26 out of 30

3
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explain how a proton gradient is created in the electron transport system

  • NADH and FADH2 are deoxidised which causes the release of high energy electrons

  • in the systems there are a series of electron acceptors which include proteins and enzymes and the electrons from the NAD & FAD are fed between the acceptors

  • during this process oxygen gets reduced to water

  • protons are exported from inside the mitochondria matrix to the intermembrane space to produce a gradient


<ul><li><p>NADH and FADH<sub>2</sub> are deoxidised which causes the release of high energy electrons </p></li><li><p>in the systems there are a series of electron acceptors which include proteins and enzymes and the electrons from the NAD &amp; FAD are fed between the acceptors </p></li><li><p>during this process oxygen gets reduced to water </p></li><li><p>protons are exported from inside the mitochondria matrix to the intermembrane space to produce a gradient </p></li></ul><p></p>
4
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explain how ATP is made from the electron transport system

  • the proton gradient between the matrix and the intermembrane space is what drives the ATP synthesis

  • the protons are transferred from the intermembrane space through the ATP synthase in to the matrix again.

  • The energy from this transport is used to bind the phosphate to the ADP to make ATP


<ul><li><p>the proton gradient between the matrix and the intermembrane space is what drives the ATP synthesis </p></li><li><p>the protons are transferred from the intermembrane space through the ATP synthase in to the matrix again.</p></li><li><p>The energy from this transport is used to bind the phosphate to the ADP to make ATP </p></li></ul><p></p>
5
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