The most important carriers for electrons in oxidation-reduction reactions are ____.
A) ADP and ATP
B) CrP and ATP
C) NAD and FAD
D) GDP and GTP

Question

Quizplus · Accepted Answer

NAD (nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide) are both coenzymes that function as oxidizing agents in many metabolic pathways. They act as carriers for electrons and hydrogen ions, which are transferred from one molecule to another in oxidation-reduction reactions. NAD and FAD can both be reduced (gaining electrons) and oxidized (losing electrons) as they shuttle electrons and hydrogen ions between molecules, allowing for energy to be produced or consumed in cells. ADP, ATP, CrP, GDP, and GTP are all important molecules involved in energy metabolism, but they do not directly participate in oxidation-reduction reactions as carriers of electrons.

The Most Important Carriers for Electrons in Oxidation-Reduction Reactions Are