The correct answer is: A. Incomplete metabolism of bilirubin.
Bilirubin is a yellow pigment that is produced when red blood cells break down. It is normally removed from the body by the liver and excreted in the bile. However, if the liver is not able to remove bilirubin effectively, it can build up in the blood and cause jaundice.
Jaundice is a yellowing of the skin and whites of the eyes. It is most commonly caused by liver disease, but it can also be caused by other conditions, such as blood disorders, infections, and certain medications.
If you are experiencing jaundice, it is important to see a doctor to determine the cause and get treatment.
Here is a brief explanation of each option:
- A. Incomplete metabolism of bilirubin: This is the most common cause of jaundice. When red blood cells break down, bilirubin is produced. Bilirubin is a waste product that needs to be removed from the body. The liver is responsible for removing bilirubin from the blood. If the liver is not able to remove bilirubin effectively, it can build up in the blood and cause jaundice.
- B. Complete metabolism of biliverdin: Biliverdin is a green pigment that is produced when red blood cells break down. It is converted to bilirubin by the liver. Bilirubin is a yellow pigment that is normally removed from the body by the liver and excreted in the bile.
- C. Incomplete metabolism of biliverdin: This is a rare cause of jaundice. It can occur when there is a problem with the enzyme that converts biliverdin to bilirubin.
- D. Complete metabolism of bilirubin: This is not a cause of jaundice.