Electron Transport Chain Diagram
Terms in this set (5)
ATP synthase complex
produces ATP from ADP and Phosphate molecules
moves protons across the membrane
molecules used to make water, electrons, protons, and ATP
hydrogen and oxygens are added together to produce water
electron transport system
The third stage of cellular respiration occurs when the hydrogen atoms are separated into protons and electrons in the electron transport chain. At the beginning of the electron transport chain, the hydrogen on NADH is removed, producing the oxidized coenzyme, NAD+ and a proton and two electrons. The electrons are transferred along a chain known as the electron transport chain. These proteins are grouped into three large respiratory enzyme complexes, furthermore, each complex in the chain has a greater affinity for electrons than the complex before it. This increasing affinity drives the electrons down the chain until they are transferred all the way to the end where they meet the oxygen molecule, which has the greatest affinity of all for the electrons. The oxygen thus becomes reduced to H2O in the presence of hydrogen ions (protons). Produces the most ATP out of all of the stages, net 32 ATP.
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