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Questions and Answers
What is the primary role of hemopexin in the handling of free heme?
What is the primary role of hemopexin in the handling of free heme?
- To prevent the loss of iron in urine
- To metabolize the heme-hemopexin complex in the liver
- To bind free heme and transport it to the liver (correct)
- To store the iron from the heme-hemopexin complex bound to ferritin
What is the main purpose of haptoglobin in the handling of free hemoglobin?
What is the main purpose of haptoglobin in the handling of free hemoglobin?
- To prevent major iron losses
- To metabolize the hemoglobin-haptoglobin complex in the liver and spleen (correct)
- To complex free heme
- To scavenge iron
What is the purpose of the enterohepatic circulation in bilirubin metabolism?
What is the purpose of the enterohepatic circulation in bilirubin metabolism?
- To conjugate bilirubin in the liver
- To recycle bilirubin back to the liver after it has been excreted in the bile (correct)
- To transport bilirubin in the plasma
- To facilitate the hepatic uptake of bilirubin
What is the purpose of the conjugation step in hepatic bilirubin transport?
What is the purpose of the conjugation step in hepatic bilirubin transport?
What is the purpose of methemalbumin in the handling of free heme?
What is the purpose of methemalbumin in the handling of free heme?
What type of bilirubin does total bilirubin measure?
What type of bilirubin does total bilirubin measure?
Which enzyme is responsible for the conjugation of bilirubin?
Which enzyme is responsible for the conjugation of bilirubin?
What occurs nonenzymatically to convert conjugated bilirubin back to unconjugated bilirubin?
What occurs nonenzymatically to convert conjugated bilirubin back to unconjugated bilirubin?
What reaches adult levels by 3-5 days regarding bilirubin transportation?
What reaches adult levels by 3-5 days regarding bilirubin transportation?
In which organ is β glucuronidase found in high concentration?
In which organ is β glucuronidase found in high concentration?
What is the main purpose of hemopexin in the handling of free heme?
What is the main purpose of hemopexin in the handling of free heme?
What happens to conjugated bilirubin in bilirubin metabolism?
What happens to conjugated bilirubin in bilirubin metabolism?
How is unconjugated bilirubin transported in plasma?
How is unconjugated bilirubin transported in plasma?
What is the function of methemalbumin in the handling of free heme?
What is the function of methemalbumin in the handling of free heme?
Where does the majority of bilirubin come from in normal adults?
Where does the majority of bilirubin come from in normal adults?
What is the fate of stercobilin produced from bilirubin metabolism?
What is the fate of stercobilin produced from bilirubin metabolism?
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