Functions of the Liver Quiz

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What is the function of the liver in producing bile?

Breaking down proteins in the small intestine

Balancing blood sugar levels

Regulating blood clotting

Eliminating waste in the small intestine (correct)

Which function does the liver perform related to glucose?

Converting excess glucose into glycogen for storage (correct)

Storing glucose as fat

Regulating blood levels of amino acids

Converting glucose to amino acids

What is a major role of the liver in detoxification?

Converting ammonia to urea (correct)

Excreting harmful substances in the feces

Filtering out bacteria from the bloodstream

Storing excess glucose

How does the liver contribute to immune response?

Producing immune factors Signup and view all the answers

Which substance is excreted in urine as an end product of protein metabolism due to the liver's function?

Urea Signup and view all the answers

What is one of the liver's functions related to blood plasma proteins?

Regulating blood clotting Signup and view all the answers

What is the main function of intestinal bile salts?

Promote digestion of dietary fats Signup and view all the answers

What may happen if there is a deficiency in Vitamin K?

Bleeding issues Signup and view all the answers

How does Vitamin D deficiency affect adults according to the text?

Osteomalacia due to decreased calcium absorption Signup and view all the answers

What is a potential consequence of biliary tract pathology?

Decreased absorption of fat-soluble vitamins Signup and view all the answers

How do bile salts prevent the formation of gallstones according to the text?

By keeping cholesterol in a soluble form Signup and view all the answers

What is the main role of bile acids and salts in lipid digestion?

Enhancing lipid absorption Signup and view all the answers

What is the primary function of the liver related to red blood cells?

Removing old or damaged red blood cells Signup and view all the answers

Which process is associated with liver function in protein metabolism?

Detoxifying ammonia Signup and view all the answers

What role does the liver play in carbohydrate metabolism?

Releasing glucose into the bloodstream Signup and view all the answers

Which function is NOT associated with the reticuloendothelial system?

Producing bilirubin Signup and view all the answers

In addition to synthesizing albumin and transferrin, what other protein does the liver produce?

Ceruloplasmin Signup and view all the answers

What is the primary role of the liver in cholesterol and lipid metabolism?

Remove fat from blood and metabolize it into fatty acids Signup and view all the answers

Which of the following is NOT a function of Vitamin A?

Increased calcium absorption in the kidneys and intestines Signup and view all the answers

Where is most of the Vitamin D stored in the body?

Adipose tissue Signup and view all the answers

What is the primary role of Vitamin E in the body?

Antioxidant activity and neuromuscular function maintenance Signup and view all the answers

Which clotting factors require Vitamin K for their synthesis?

Factors II, VII, IX, and X Signup and view all the answers

What is the primary site of Vitamin B12 storage in the body?

Liver Signup and view all the answers

What is the main role of the liver in maintaining iron homeostasis?

Recycling iron from senescent red blood cells Signup and view all the answers

What is the primary function of resident macrophages in the liver sinusoids?

To eliminate senescent blood cells and foreign bodies Signup and view all the answers

Which enzyme is responsible for the conversion of biliverdin to bilirubin?

Biliverdin reductase Signup and view all the answers

What is the primary role of hepatocytes in bilirubin elimination?

To convert unconjugated bilirubin to conjugated bilirubin Signup and view all the answers

Where is conjugated bilirubin stored before being excreted?

In the gallbladder Signup and view all the answers

What is the fate of conjugated bilirubin in the small intestine?

It is degraded by bacterial proteases to urobilinogen Signup and view all the answers

What is the initial step in the bilirubin elimination pathway?

Uptake of unconjugated bilirubin by hepatocytes Signup and view all the answers