What happens during the Krebs cycle and the electron transport chain?

What happens as electrons pass down the electron transport chain?

As electrons are passed down the chain, they move from a higher to a lower energy level, releasing energy. Some of the energy is used to pump H +start superscript, plus, end superscript ions, moving them out of the matrix and into the intermembrane space. This pumping establishes an electrochemical gradient.

Is the Krebs cycle the electron transport chain?

Electron transport chain and oxidative phosphorylation: NADH and FADH2 produced in Krebs cycle enters electron transport chain, creating a proton motive force and finally produces ATP with O2 as terminal electron acceptor forming H2O.

What would cause the electron transport chain and the Krebs cycle to stop?

The CO2 produced by the Krebs cycle is the same CO2 that you exhale. The electron carriers NADH and FADH are sent to the final step of cell respiration, which is respiratory electron transport. The Krebs cycle does not use oxygen, though it does stop in the absence of oxygen because it runs out of NAD and FAD.

What is the function of an electron in the electron transport chain?

In the electron transport chain, electrons are used to release energy, develop a chemical gradient, and form an electrochemical gradient that is finally used to produce ATP molecules.

What is the final electron acceptor in the electron transport chain?

Oxygen
Oxygen is the terminal electron acceptor in the mitochondrial electron transport chain and therefore is required for the generation of energy through oxidative phosphorylation.