Question

As they move down the electron transport chain (from a higher energy molecule to lower energy molecules) _______ is released.

Answer 1

Energy is released as electrons move down the electron transport chain. This energy is used to produce ATP.

Step-by-step explanation:

As electrons move down the electron transport chain, energy is released. The electron transport chain is a series of molecules that transfer electrons from molecule to molecule through chemical reactions. Along this chain, the energy from the electrons is used to pump hydrogen ions across the inner membrane of the mitochondrion, creating an electrochemical gradient that drives the synthesis of ATP. The electrons from the final protein of the electron transport chain are gained by oxygen, reducing it to water in the mitochondrion's matrix.