coenzymes is the first electron acceptor in cellular respiration.
coenzymes is the first electron acceptor in cellular respiration.
the first electron acceptor in cellular respiration is?
coenzymes
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 biology, electron donors release an electron during cellular respiration, resulting in the release of energy. microorganisms, such as bacteria, obtain energy in the electron transfer processes. through its cellular machinery, the microorganism collects the energy for its use. the final result is the electron is donated to an electron acceptor. during this process (electron transport chain) the electron donor is oxidized and the electron acceptor is reduced. petroleum hydrocarbons, less chlorinated solvents like vinyl chloride, soil organic matter, and reduced inorganic compounds are all compounds that can act as electron donors. these reactions are of interest not only because they allow organisms to obtain energy, but also because they are involved in the natural biodegradation of organic contaminants. when clean-up professionals use monitored natural attenuation to clean up contaminated sites, biodegradation is one of the major contributing processes.
electron donor