Human Liver Multiple Choice Question
Human Liver Multiple Choice Question
Certainly! Here are 50 multiple-choice questions (MCQs) based on the human liver, along with the correct answers:
What is the primary function of the liver?
A) Digestion
B) Filtration of blood
C) Hormone production
D) Bone formation
Answer: B) Filtration of blood
Which of the following is not a function of the liver?
A) Detoxification
B) Protein synthesis
C) Bile production
D) Insulin secretion
Answer: D) Insulin secretion
What is the structural and functional unit of the liver?
A) Nephron
B) Alveolus
C) Hepatocyte
D) Osteocyte
Answer: C) Hepatocyte
Which blood vessel supplies oxygen-rich blood to the liver?
A) Hepatic artery
B) Hepatic portal vein
C) Inferior vena cava
D) Aorta
Answer: A) Hepatic artery
Which blood vessel carries nutrient-rich blood from the digestive organs to the liver?
A) Hepatic artery
B) Hepatic portal vein
C) Inferior vena cava
D) Aorta
Answer: B) Hepatic portal vein
What is bile, produced by the liver, primarily responsible for?
A) Carbohydrate digestion
B) Fat digestion
C) Protein digestion
D) Vitamin absorption
Answer: B) Fat digestion
Where is bile stored and concentrated before being released into the small intestine?
A) Pancreas
B) Stomach
C) Gallbladder
D) Spleen
Answer: C) Gallbladder
What is the name of the process by which the liver converts excess glucose into glycogen?
A) Glycolysis
B) Gluconeogenesis
C) Glycogenolysis
D) Glycogenesis
Answer: D) Glycogenesis
Which vitamin is not stored in significant amounts in the liver?
A) Vitamin A
B) Vitamin D
C) Vitamin C
D) Vitamin B12
Answer: C) Vitamin C
What is the primary pigment found in bile?
A) Hemoglobin
B) Myoglobin
C) Bilirubin
D) Melanin
Answer: C) Bilirubin
Which enzyme is produced by the liver to help digest fats?
A) Amylase
B) Lipase
C) Protease
D) Pepsin
Answer: B) Lipase
Which of the following proteins is synthesized by the liver?
A) Insulin
B) Hemoglobin
C) Albumin
D) Myosin
Answer: C) Albumin
Which clotting factor is produced by the liver?
A) Fibrinogen
B) Thromboplastin
C) Prothrombin
D) Plasminogen
Answer: C) Prothrombin
What is the condition called when the liver becomes inflamed?
A) Hepatitis
B) Cirrhosis
C) Jaundice
D) Hepatomegaly
Answer: A) Hepatitis
What is the term for the yellowing of the skin and eyes due to high bilirubin levels?
A) Cyanosis
B) Jaundice
C) Erythema
D) Melanosis
Answer: B) Jaundice
Which of the following is a common cause of liver cirrhosis?
A) Viral infection
B) Alcohol abuse
C) Bacterial infection
D) Fungal infection
Answer: B) Alcohol abuse
What is the liver’s role in the metabolism of drugs?
A) Synthesis
B) Absorption
C) Excretion
D) Detoxification
Answer: D) Detoxification
Which liver disease is characterized by the replacement of healthy liver tissue with scar tissue?
A) Hepatitis
B) Cirrhosis
C) Fatty liver disease
D) Liver cancer
Answer: B) Cirrhosis
What is the term for the buildup of fat in the liver not caused by alcohol?
A) Alcoholic liver disease
B) Non-alcoholic fatty liver disease (NAFLD)
C) Hepatitis
D) Cirrhosis
Answer: B) Non-alcoholic fatty liver disease (NAFLD)
Which hormone does the liver help activate by converting it from its inactive form?
A) Insulin
B) Glucagon
C) Vitamin D
D) Thyroxine
Answer: C) Vitamin D
What is the liver’s primary role in protein metabolism?
A) Protein absorption
B) Protein digestion
C) Deamination of amino acids
D) Protein excretion
Answer: C) Deamination of amino acids
Which condition results from the excessive accumulation of iron in the liver?
A) Wilson’s disease
B) Hemochromatosis
C) Cirrhosis
D) Hepatitis
Answer: B) Hemochromatosis
What is the consequence of liver failure on blood clotting?
A) Increased clotting
B) Decreased clotting
C) No effect
D) Enhanced clotting factor synthesis
Answer: B) Decreased clotting
Which of the following is a liver function test?
A) Complete blood count (CBC)
B) Lipid profile
C) Alanine aminotransferase (ALT)
D) Blood urea nitrogen (BUN)
Answer: C) Alanine aminotransferase (ALT)
Which liver enzyme is elevated in conditions like hepatitis and liver damage?
A) Amylase
B) Lipase
C) Alanine aminotransferase (ALT)
D) Pepsin
Answer: C) Alanine aminotransferase (ALT)
What is the role of the liver in lipid metabolism?
A) Breakdown of fatty acids
B) Absorption of fats
C) Excretion of lipids
D) Conversion of lipids to glucose
Answer: A) Breakdown of fatty acids
Which substance is synthesized by the liver and helps emulsify fats in the digestive system?
A) Insulin
B) Glucagon
C) Bile
D) Gastrin
Answer: C) Bile
What is the effect of chronic alcohol consumption on the liver?
A) Increased bile production
B) Decreased risk of liver disease
C) Fatty liver, hepatitis, and cirrhosis
D) Enhanced detoxification
Answer: C) Fatty liver, hepatitis, and cirrhosis
What condition is caused by a buildup of copper in the liver?
A) Hemochromatosis
B) Wilson’s disease
C) Cirrhosis
D) Hepatitis
Answer: B) Wilson’s disease
What is the role of the liver in carbohydrate metabolism?
A) Glycogen storage
B) Glucose production
C) Glucose breakdown
D) All of the above
Answer: D) All of the above
Which protein produced by the liver is essential for maintaining blood oncotic pressure?
A) Fibrinogen
B) Albumin
C) Globulin
D) Hemoglobin
Answer: B) Albumin
Which phase of drug metabolism involves the modification of drugs by liver enzymes?
A) Phase I
B) Phase II
C) Phase III
D) Phase IV
Answer: A) Phase I
What is the primary storage form of glucose in the liver?
A) Glucagon
B) Glycogen
C) Glucose
D) Starch
Answer: B) Glycogen
What type of cells in the liver are responsible for phagocytosis?
A) Hepatocytes
B) Kupffer cells
C) Stellate cells
D) Endothelial cells
Answer: B) Kupffer cells
Which of the following substances is not synthesized by the liver?
A) Cholesterol
B) Bile acids
C) Hemoglobin
D) Albumin
Answer: C) Hemoglobin
What is the liver’s role in the excretion of bilirubin?
A) Production of bilirubin
B) Storage of bilirubin
C) Conversion and excretion of bilirubin
D) Utilization of bilirubin
Answer: C) Conversion and excretion of bilirubin
Which vitamin is crucial for blood clotting and is stored in the liver?
A) Vitamin A
B) Vitamin D
C) Vitamin K
D) Vitamin E
Answer: C) Vitamin K
What is the primary consequence of liver cirrhosis?
A) Increased liver function
B) Decreased liver function
C) Increased bile production
D) Increased protein synthesis
Answer: B) Decreased liver function
Which liver condition is characterized by the accumulation of fat in liver cells?
A) Hepatitis
B) Cirrhosis
C) Fatty liver disease
D) Liver cancer
Answer: C) Fatty liver disease
Which of the following is a symptom of liver disease?
A) Jaundice
B) Hypertension
C) Polyuria
D) Hypoglycemia
Answer: A) Jaundice
Which of the following enzymes is used to diagnose liver function?
A) Lactate dehydrogenase (LDH)
B) Alanine aminotransferase (ALT)
C) Creatine kinase (CK)
D) Alkaline phosphatase (ALP)
Answer: B) Alanine aminotransferase (ALT)
What is the term for the surgical removal of a portion of the liver?
A) Nephrectomy
B) Lobectomy
C) Hepatectomy
D) Gastrectomy
Answer: C) Hepatectomy
What is the main function of the liver’s stellate cells?
A) Bile production
B) Blood filtration
C) Storage of vitamin A
D) Protein synthesis
Answer: C) Storage of vitamin A
Which substance is produced by the liver and aids in the emulsification of fats?
A) Amylase
B) Bile salts
C) Pepsin
D) Trypsin
Answer: B) Bile salts
What is the impact of liver disease on albumin levels?
A) Increased levels
B) Decreased levels
C) No change
D) Fluctuating levels
Answer: B) Decreased levels
Which process involves the liver breaking down glycogen to release glucose into the bloodstream?
A) Glycolysis
B) Glycogenesis
C) Glycogenolysis
D) Gluconeogenesis
Answer: C) Glycogenolysis
What is the medical term for liver inflammation?
A) Hepatitis
B) Nephritis
C) Gastritis
D) Pancreatitis
Answer: A) Hepatitis
What condition is caused by the buildup of ammonia in the bloodstream due to liver dysfunction?
A) Hepatic encephalopathy
B) Jaundice
C) Cirrhosis
D) Hepatitis
Answer: A) Hepatic encephalopathy
Which liver enzyme is commonly measured to assess liver damage?
A) Creatine kinase (CK)
B) Alkaline phosphatase (ALP)
C) Aspartate aminotransferase (AST)
D) Lactate dehydrogenase (LDH)
Answer: C) Aspartate aminotransferase (AST)
What is the impact of liver failure on the body’s detoxification process?
A) Enhanced detoxification
B) Impaired detoxification
C) No change
D) Increased toxin production
Answer: B) Impaired detoxification
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