In cellular respiration, where do the high-energy electrons that move through the electron transport chain originate?

The electrons are carried to the ECT by NADH and FADH+, which are reduced during glycolysis, pyruvate oxidation, and the Krebs cycle.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.