Final answer:
True. Electrons from NADH and FADH₂ oxidation provide the ETC with the energy to pump H+ ions against the gradient into the intermembrane space.
Step-by-step explanation:
True. Electrons from NADH and FADH₂ oxidation enter the Electron Transport Chain (ETC) and provide the energy to pump H+ ions against the gradient into the intermembrane space. This creates a proton gradient, which is important for the production of ATP during chemiosmosis.