what are the functions of the high - energy electrons in the electron transport chain?
a. they hold water bonds
b. they make atp and adp
c. they carry nadh and fadh
d. they create atp synthase
c. they carry NADH and FADH.
The high-energy electrons in the electron transport chain are produced during earlier stages of cellular respiration (specifically, glycolysis and the Krebs cycle) and are carried by electron carriers such as NADH and FADH2. These electron carriers donate their high-energy electrons to the electron transport chain, where the electrons move through a series of protein complexes embedded in the inner mitochondrial membrane. As the electrons are passed along the chain, their energy is gradually released and used to pump protons (H+) across the membrane, creating an electrochemical gradient. This electrochemical gradient is then used by ATP synthase to generate ATP, which acts as a primary source of cellular energy.