When a molecule of NAD+ (nicotinamide adenine dinucleotide) gains a hydrogen atom (not a proton), the molecule becomes _________. 00:26 Biology When a molecule of NAD+ (nicotinamide adenine dinucleotide) gains a hydrogen atom (not a proton), the molecule becomes _________.A) reducedB) dehydrogenatedC) oxidizedD) redoxedAnswer: A) reduced Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+