Electron shuttles, also known as electron carriers, are tiny organic molecules that play an important role in cellular respiration.
Their work description is summed up in their name: they take up electrons from one molecule and deposit them in another.
NADH
When NAD oxidizes a molecule by receiving electrons and adding hydrogen ions to the chemical, it produces NADH.
The coenzyme nicotinamide adenine dinucleotide is essential for metabolism.
NADH (electron carrier) is a reduced version of NAD+ (an electron acceptor) that can be produced through glycolysis and other metabolic processes.
NADH is employed in the electron transport chain (ETC) and oxidative phosphorylation to produce a large amount of ATP. In the mitochondria, NADH also provides electrons to the ETC.
NADH is the electron carrier's reduced form, which is transformed into NAD+.
The electron carrier is oxidized as a result of this phase of the process.