Podcast
Questions and Answers
Which of the following is NOT a source of ammonia production in the body?
Which of the following is NOT a source of ammonia production in the body?
- Deamination of nucleic acids
- Bacterial action on urea in the intestine
- Breakdown of amino acids
- Metabolism of glutamine in the liver (correct)
In cases of liver cell failure, the level of ammonia in the blood is expected to be:
In cases of liver cell failure, the level of ammonia in the blood is expected to be:
- Unchanged as the liver is not involved in ammonia metabolism
- Increased due to decreased urea production (correct)
- Decreased due to impaired ammonia metabolism
- Increased due to increased deamination of amino acids
Which of the following is NOT a fate of ammonia in the body?
Which of the following is NOT a fate of ammonia in the body?
- Conversion to urea and excretion in urine
- Conversion to amino acids for protein synthesis (correct)
- Excretion as ammonia in urine
- Trapping as glutamine in the liver, brain, and kidneys
Which of the following symptoms is NOT associated with hyperammonemia (elevated ammonia levels in the blood)?
Which of the following symptoms is NOT associated with hyperammonemia (elevated ammonia levels in the blood)?
In cases of hereditary hyperammonemia, the underlying cause is:
In cases of hereditary hyperammonemia, the underlying cause is:
Which of the following treatments is recommended for hyperammonemia due to kidney failure?
Which of the following treatments is recommended for hyperammonemia due to kidney failure?
Which of the following amino acids does NOT require a specific transferase for its transamination reaction?
Which of the following amino acids does NOT require a specific transferase for its transamination reaction?
In which cellular compartments does transamination occur?
In which cellular compartments does transamination occur?
Which of the following is NOT a clinically important transamination reaction?
Which of the following is NOT a clinically important transamination reaction?
In which condition would you expect to see a higher elevation of AST (SGOT) compared to ALT (SGPT)?
In which condition would you expect to see a higher elevation of AST (SGOT) compared to ALT (SGPT)?
Which of the following is NOT a function of transamination reactions?
Which of the following is NOT a function of transamination reactions?
Which of the following conditions is associated with an increase in plasma aminotransferase levels?
Which of the following conditions is associated with an increase in plasma aminotransferase levels?
Which of the following is NOT a factor that regulates glutamate dehydrogenase activity?
Which of the following is NOT a factor that regulates glutamate dehydrogenase activity?
Which of the following statements about the urea cycle is correct?
Which of the following statements about the urea cycle is correct?
What is the primary fate of urea produced in the urea cycle?
What is the primary fate of urea produced in the urea cycle?
Which of the following amino acids is classified as both essential and non-essential?
Which of the following amino acids is classified as both essential and non-essential?
What is the primary role of the urea cycle in intermediary metabolism?
What is the primary role of the urea cycle in intermediary metabolism?
Which of the following conditions is associated with an impaired urea cycle?
Which of the following conditions is associated with an impaired urea cycle?
