oxygen is the molecule that acts as the final electron acceptor of the electron transport chain.
oxygen is the molecule that acts as the final electron acceptor of the electron transport chain.
the molecule that acts as the final electron acceptor of the electron transport chain is?
oxygen
an exoelectrogen normally refers to a microorganism that has the ability to transfer electrons extracellularly. while exoelectrogen is the predominant name, other terms have been used: electrochemically active bacteria, anode respiring bacteria, and electricigens. electrons exocytosed in this fashion are produced following atp production using an electron transport chain (etc) during oxidative phosphorylation. conventional cellular respiration requires a final electron acceptor to receive these electrons. cells that use molecular oxygen (o) as their final electron acceptor are described as using aerobic respiration, while cells that use other soluble compounds as their final electron acceptor are described as using anaerobic respiration. however, the final electron acceptor of an exoelectrogen is found extracellularly and can be a strong oxidizing agent in aqueous solution or a solid conductor/electron acceptor. two commonly observed acceptors are iron compounds (specifically fe(iii) oxides) and manganese compounds (specifically mn(iii/iv) oxides). as oxygen is a strong oxidizer, cells are able to do this strictly in the absence of oxygen.
exoelectrogen
in oxidative phosphorylation, electrons are transferred from a low-energy electron donor (e.g., nadh) to an acceptor (e.g., o) through an electron transport chain. in photophosphorylation, the energy of sunlight is used to "create" a high-energy electron donor and an electron acceptor. electrons are then transferred from the donor to the acceptor through another electron transport chain.
electron transport chain