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Liver Functions Overview

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Questions and Answers

What is the primary function of ureagenesis in the liver?

To convert alcohol into acetaldehyde

To metabolize drugs for excretion

To produce hormones for the bloodstream

To convert toxic ammonia into a less toxic compound (correct)

Which enzyme is primarily responsible for the metabolic conversion of ethanol in the liver?

Hormone oxidase

Acetaldehyde hydrolase

Alcohol dehydrogenase (correct)

Cytochrome P450

How does the liver contribute to hormone metabolism?

By increasing hormone synthesis without regulation

By storing hormones for later release

Through inactivation and excretion of excess hormones (correct)

By producing hormones directly for the bloodstream

What role does the cytochrome P450 enzyme system play in the liver?

<p>Drug metabolism through enzymatic reactions</p> Signup and view all the answers

What overall function does the liver serve regarding alcohol and drugs?

<p>It breaks down and metabolizes them through enzymatic activity</p> Signup and view all the answers

Study Notes

Liver Functions

Urea formation: The liver synthesizes urea through the urea cycle, converting toxic ammonia into a less toxic compound for excretion.
Alcohol Metabolism: The liver breaks down alcohol using enzymes like alcohol dehydrogenase, converting ethanol into acetaldehyde and acetate.
Drug Metabolism: The liver metabolizes drugs through enzymatic reactions, primarily involving the cytochrome P450 enzyme system.
Hormone Metabolism: The liver inactivates hormones through enzymatic modifications and conjugation reactions for excretion.
Hormone Balance: The liver regulates the synthesis, breakdown, and release of hormones into the bloodstream, maintaining hormonal balance.

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Description

This quiz covers key functions of the liver, including urea formation, alcohol and drug metabolism, and hormone regulation. Test your knowledge on how the liver plays a vital role in detoxification and maintaining homeostasis in the body.