Question

Electrons removed during glycolysis oxidation are returned to an organic molecule later in the same pathway by what process?

Answer 1

During glycolysis, high-energy electrons are removed from glyceraldehyde-3-phosphate and picked up by NAD+ to form NADH. These electrons are returned to an organic molecule in the same pathway through fermentation.

Step-by-step explanation:

During glycolysis, high-energy electrons are removed from a sugar molecule called glyceraldehyde-3-phosphate, and are picked up by the electron carrier NAD+ to form NADH. These electrons are later returned to an organic molecule in the same pathway through a process called fermentation. Fermentation is a metabolic pathway that occurs in the absence of oxygen and involves the oxidation of NADH back to NAD+, allowing glycolysis to continue.