An electron transport chain pumps across a membrane while transferring from one chemical to another. view available hint(s) an electron transport chain pumps across a membrane while transferring from one chemical to another. protons; electrons atp; atpase electrons; protons electron carriers; protons

The correct option is: protons; electrons

Explanation:

The electron transport chain contains a series of biomolecules that are involved in the transfer of electrons by redox reactions.

This process involves the transfer of electrons from an electron donor molecule to an electron acceptor molecule, resulting in the release of energy. Some amount of this energy is then used in pumping the protons across the biological membrane.