Biochemistry : Ethanol Fermentation

Study concepts, example questions & explanations for Biochemistry

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Example Questions

Example Question #212 : Carbohydrate Metabolism

Multiple studies have shown that drinking lots of alcohol can lead to an increase in body fat. 

From a biochemical perspective, what aspect of alcohol metabolism may suggest that it contributes to an increase in body fat?

Possible Answers:

Production of acetyl-CoA

Formation of acetic acid

Formation of acetaldehyde

Formation of acetals and ketals 

Correct answer:

Production of acetyl-CoA

Explanation:

Fats are broken down into acetyl-CoA to be used for energy. However, large quantities of alcohol will produce large quantities of acetyl-CoA when metabolized. Acetyl-CoA can be converted into fatty acids when it is in excess. Then fatty acids can assemble into triglycerides and be stored as fat.

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