Question

The enzyme alcohol dehydrogenase is located in the

A) mouth and throat.
B) stomach and liver.
C) intestines and colon.
D) gallbladder and kidneys.

Answer 1

The enzyme alcohol dehydrogenase is located in the stomach and liver. It catalyzes the oxidation of ethanol to acetaldehyde, NADH, and H+ ions. Acetaldehyde is further metabolized into acetate by another enzyme called acetaldehyde dehydrogenase to protect the liver cells.

Step-by-step explanation:

The enzyme alcohol dehydrogenase is located in the stomach and liver.

About 80 to 90% of the total hepatic ethanol uptake is processed via the alcohol dehydrogenase system in the liver. The enzyme catalyzes the oxidation of ethanol to acetaldehyde, NADH, and H+ ions. Acetaldehyde is further metabolized into acetate by another enzyme called acetaldehyde dehydrogenase to protect the liver cells.