NADH Nicotinamide adenine dinucleotide

[crays]

Hi, I'm currently learning the respiration process on how ATP are generated. I came across this NADH molecule. My teacher failed to explain how NAD⁺ can form NADH + H⁺. Can someone tell me how?

 

[Ygggdrasil]

Basically, the NAD⁺ reacts with a hydride ion to form NADH. The H⁺ is there because most biological reactions that release a hydride also release a proton.

http://en.wikipedia.org/wiki/NADH

 

[crays]

Thanks. Helped a bunch for me =D!