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Biochemistry Practice Test Questions: Amino Acid Oxidation and the Production of Urea
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Topics covered include: Metabolic Fates of Amino Groups, Nitrogen Excretion and the Urea Cycle, & Pathways of Amino Acid Degradation.

Related Test: Biochemistry Practice Test Questions: Amino Acids, Peptides and Proteins

Biochemistry Practice Test Questions: Amino Acid Oxidation and the Production of Urea
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25 Questions

1. Urea production occurs almost exclusively in ___________
2. Which of the following operates at an important intersection of carbon and nitrogen metabolism?
3. Pyridoxal phosphate and its aminate form, pyridoxamine phosphate are tightly bound coenzymes of ___________
4. Which of the following amino acids are exclusively ketogenic?
5. Fumarate is produced from four carbon atoms of _________
6. Which of the following is not an essential amino acid?
7. Which of the following hydrolyzes successive amino-terminal residues from short peptides?
8. Glutamine is converted to glutamate and NH4+ by ___________
9. Which is the first step in the catabolism of most L-amino acids once they have reached the liver is promoted?
10. The first enzyme in the pathway carbamoyl phosphate synthase I, is allosterically activated by ___________
11. Free ammonia combined with glutamate to yield glutamine by the action of ___________
12. Which of the following produces pyruvate?
13. Which is the first amino group entering into urea cycle?
14. The combined action of aminotransferase and glutamate dehydrogenase is referred as ___________
15. Glutamate is metabolically converted to α-ketoglutarate and NH4+ by a process ___________
16. Which of the following produce succinyl co-A?
17. Which of the following produces oxaloacetate?
18. Trypsinogen is converted to its active state by ___________
19. Urea cycle converts ___________
20. What is the necessary coenzyme for transamination reactions?
21. Which of the following produces α-ketoglutarate?
22. Nitrogen atoms of urea produced in the urea cycle are derived from ___________
23. The carbon atom source while producing urea in the urea cycle is ___________
24. What are the products of urea cycle?
25. Which of the following are exclusively glucogenic?

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