Answer: ATP and NADH respectively.
Explanation:
Glycolysis is the cellular degradation of the simple sugar glucose to yield pyruvic acid, and ATP as an ENERGY source.
So, the net 2 moles of ATP generated per mole of glucose oxidized in glycolysis carries energy; while the 2 moles of NADH (Nicotinamide Adenine Dinucleotide) generated carries energy electrons as a hydrogen atom or hydride ion.
Thus, the carriers for energy and high energy electrons during glycolysis are ATP and NADH respectively.
