Question

The electron transport chain (ETC), or respiratory chain, is linked to proton movement and ATP synthesis. Select the statements that accurately describe the electron transport chain Choose all that apply. Electron transfer in the ETC is coupled to proton transfer from the matrix to the intermembrane space The outer membrane of mitochondria is readily permeable to small molecules and hydrogen ions. Prosthetic groups, such as iron-sulfur centers, are directly involved with electron transfer. Electron carriers in the ETC include ubiquinone (coenzyme Q) and cytochrome c. Electrons generated by the citric acid cycle in the intermembrane space enter the ETC. The reactions of the ETC take place in the outer membrane of mitochondria. Electron carriers are organized into four complexes of proteins and prosthetic groups. One of your answers is incorrect, and there is another correct answer Keep in mind that electron carriers undergo oxidation and reduction. Consider which compounds are capable of being oxidized or reduced.

Answer 1

Option 1,2,3,4,7

Note - the reaction of etc take place in inner mitrochondrial membrane .

The carrier of electron help in undergoing oxidation and reducaton .

Etc is linked atp symthase which pushes proton from matrix to inner membrane .