Q:

Where does the electron transport chain take place?

A:

Quick Answer

The electron transport chain takes place in the membranes of the mitochondria in eukaryotic cells. Electron transport is the last stage of cell respiration. The chain passes high-energy electrons formed during glycolysis into oxygen-creating adenosine triphosphate (ATP) for energy.

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Full Answer

Cellular respiration is the process through which cells convert glucose into ATP for energy. The first phase, glycolysis, starts breaking down the glucose in the cell's cytoplasm. The second phase, the citric acid cycle, creates high-energy electrons by passing the broken-down glucose through several chemical reactions. The third phase, electron transport, moves the high-energy electrons through a chain of redox reactions in the mitochondrial membrane to create ATP.

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Related Questions

  • Q:

    Where does the electron transport chain occur?

    A:

    Most of the activity of the electron transport chain occurs in a cell's mitochondrial inner membrane. This is where the electron transport chain gets the proteins it needs to function properly.

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  • Q:

    What happens as an electron moves down an electron transport chain?

    A:

    The Austin Community College electron transport page explains that as electrons travel down the transport chain, the electrons are transferred between protein complexes and lose energy that is used to pump protons across the mitochondrial membrane. This enables the maintenance of a proton gradient across the inner mitochondrial membrane, which in turn is used to run the ATP synthase to make the ATP that cells use for energy.

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  • Q:

    Which organelle is the site of cellular respiration?

    A:

    The mitochondria of the eukaryotic cells are the sites of cellular respiration and where most of the steps take place. Cellular respiration allows for the release of energy stored in chemical bonds of glucose (obtained from food) to form adenosine triphosphate, which is the energy currency of the cell.

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  • Q:

    What is an electron configuration?

    A:

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