Glycolysis: Pathway and Significance · NCERT Biology

Which molecule is known as the 'mobile electron carrier' that is reduced during glycolysis and carries electrons to the ETC in aerobic respiration?

  1. ATP
  2. FAD
  3. NAD+
  4. Coenzyme Q
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Correct answer: NAD+

NAD+ (Nicotinamide Adenine Dinucleotide) acts as an oxidizing agent in glycolysis, picking up two electrons and a proton to become NADH. In aerobic conditions, this NADH is then shuttled toward the mitochondria for oxidative phosphorylation.

Difficulty: Medium Question 13 of 20

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