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Home Q & A Board Biology-Related Homework Help Biochemistry
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tommygirl5012 tommygirl5012
wrote...
12 years ago
What coenzyme can accept 2 hydrogen atoms when it is associated functionally with the active site of a dehydrogenase enzyme?
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wrote...
#1
12 years ago
Answer - NAD+

NAD+ + 2H+ + 2e- ?> NADH + H+
wrote...
#2
12 years ago
Both FAD and NAD+ can accept 2 hydrogen atoms.

FAD becomes FADH2        (FAD + 2e + 2H ---> FADH2)

(I've added 2 H's)

NAD+ becomes NADH + H    (NAD+ + 2e + 2H ----> NADH + H)

(The (+) means that the NAD already has one less electron (or you can think of it as Hydrogen atoms) So you don't see the second Hydrogen, because it got rid of the (+) sign, this is why sometimes NADH + H is sometimes written as NADH. It is still the same molecule)

Good luck!
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