Figure 1.
The pathway of alcohol metabolism. Once in the liver, alcohol is converted into acetaldehyde and the acetaldehyde is converted into acetate. The enzyme alcohol dehydrogenase (ADH) catalyzes the first half of alcohol metabolism, and the enzyme aldehyde dehydrogenase (ALDH) catalyzes the second half. NAD+ is a coenzyme that plays an accessory role in enzyme catalysis.
