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ALCOHOL METABOLISM

Total questions: 10

Worksheet time: 2mins

Name
Class
Date
1.

What is the primary enzyme responsible for the conversion of ethanol to acetaldehyde in the liver?

a)

Alcohol dehydrogenase

b)

Catalase

c)

MEOS

2.

CBL: Case-Based Learning Scenario

Case: A 36 year old male is brought to the emergency department with confusion, nausea, and blurred vision. His friends report he had consumed homemade liquor the night before. His breath has a fruity odor, and fundus examination shows signs of optic nerve damage. Lab tests show high anion gap metabolic acidosis.

1. What is the most likely diagnosis?

a)

Alcohol intoxication

b)

Methanol poisoning

c)

Fatty liver

d)

Alcohol ketoacidosis

3.

CBL: Case-Based Learning Scenario

Case: A 45 year old female presents to the clinic with severe abdominal pain, vomiting, and confusion. She has a history of binge drinking and reports consuming a large quantity of alcohol the previous night. Physical examination reveals jaundice and asterixis. Lab tests indicate elevated liver enzymes and a high anion gap.

1. What is the most likely diagnosis?

a)

Acute liver failure

b)

Pancreatitis

c)

Alcohol withdrawal syndrome

d)

Alcoholic hepatitis

4.

Which of the following is a lipotropic factor important for preventing fatty liver?

a)

Ethanol

b)

Acetyldehye

c)

NADH

d)

Choline

5.

alcohol-induced hypoglycemia, which gluconeogenic intermediate is reduced due to high NADH/NAD+ ratio?

a)

Citrate

b)

Pyruvate

c)

Glucose

d)

Acetyl-CoA

6.

Which of the following metabolic changes does NOT occur in chronic alcohol use?

a)

Fatty liver

b)

Ketogenesis

c)

Lactic acidosis

d)

Increased gluconeogenesis

7.

What is the calorific value (kcal/gm) of ethanol?

a)

8

b)

6

c)

7

d)

9

8.

What is the primary metabolic pathway for ethanol oxidation in the liver?

a)

Glycolysis

b)

Citric acid cycle

c)

Alcohol dehydrogenase pathway

d)

Fatty acid synthesis

9.

In the context of alcohol metabolism, what effect does a high NADH/NAD+ ratio have on the liver?

a)

Increased fatty acid oxidation

b)

Inhibition of gluconeogenesis

c)

Enhanced ketogenesis

d)

Decreased lactate production

10.

In the context of alcohol metabolism, what is the consequence of increased NADH levels?

a)

Promotion of lactic acid production

b)

Inhibition of fatty acid synthesis

c)

Enhanced protein synthesis

d)

Increased gluconeogenesis