MCAT Chemistry > Electrochemistry
One of the most important concepts when trying to understand the chemistry of the human body is to know the electrical interactions that can take place. The concepts of reduction and oxidation show up many times throughout the MCAT, with one of the notable examples being the oxidation of NAD+ to NADH that occurs during the biological process of cellular respiration.
NAD+ + H+ + 2e- -> NADH
Electrochemistry is built upon the fundamental idea of the reduction-oxidation (REDOX) reaction, which can be remembered through the mnemonic LEO GER. This means Loss of Eelectrons = Oxidation and Gain of Electrons = Reduction.