When NAD+ is ________ It Becomes NADH

Question

When NAD+ is ________ it becomes NADH. When NADH is ________ it becomes NAD+.
A) phosphorylated; deaminated
B) reduced; oxidized
C) made; recycled
D) phosphorylated; dephosphorylated
E) oxidized; reduced

Accepted Answer

NAD+ is a coenzyme that functions as an electron carrier during cellular respiration. When it accepts electrons during redox reactions, it becomes reduced and gains a hydrogen ion (H+) to become NADH. In reverse, when NADH donates electrons during redox reactions, it becomes oxidized and releases a hydrogen ion to become NAD+.