Discussion
Home ‣ Biochemistry ‣ Nitrogen Metabolism Comments
- Question
The nitrogen atoms of urea produced in the urea cycle are derived from
Options- A. nitrate
- B. ammonia and aspartic acid
- C. nitrite
- D. ammonia
- Correct Answer
- ammonia and aspartic acid
- 1. Which of the following amino acid do not fall under the category of essential amino acid?
Options- A. Histidine
- B. Leucine
- C. Glycine
- D. Methionine Discuss
- 2. Which of the following is not a significant biological oxidizing agent?
Options- A. FAD
- B. Fe3+
- C. O2
- D. NAD+ Discuss
- 3. What happens after glycolysis when oxygen is available as an electron acceptor?
Options- A. Pyruvate is formed
- B. NADH is produced
- C. Fermentation
- D. Oxidative phosphorylation Discuss
- 4. During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for
Options- A. complex I
- B. complex II
- C. complex III
- D. complex IV Discuss
- 5. In electron transport, electrons ultimately pass to
Options- A. ADP
- B. cytochrome b
- C. oxygen
- D. none of these Discuss
- 6. Urea cycle converts
Options- A. ammonia into a less toxic form
- B. ketoacids into amino acids
- C. amino acids into ketoacids
- D. none of these Discuss
- 7. Which of the following is used as carbon atom source while producing urea in the urea cycle?
Options- A. Arginine
- B. Aspartic acid
- C. Carbon dioxide
- D. Glucose Discuss
- 8. The inputs to one cycle of the urea cycle are
Options- A. 1 molecule of aspartic acid, 1 molecule of ammonia, 1 molecule of carbon dioxide, 3 molecules of ATP
- B. 1 molecule of urea, 1 molecule of ammonia, 3 molecules of ATP and 1 molecule of fumaric acid
- C. 1 molecule of fumaric acid, 1 molecule of urea, 3 molecules of AMP
- D. None of the above Discuss
- 9. How many molecules of ATP are hydrolysed to form two molecule of ammonia?
Options- A. 10
- B. 5
- C. 16
- D. 15 Discuss
- 10. The products of urea cycle are
Options- A. 1 molecule of urea, 1 molecule of ammonia, 1 molecule of ATP and 1 molecule of fumaric acid
- B. 1 molecule of fumaric acid, 1 molecule of urea, 1 molecule of AMP, 2 molecules of ADP
- C. 1 molecule of aspartic acid, 1 molecule of ammonia, 1 molecule of fumaric acid, 1 molecule of ATP
- D. None of the above Discuss
Nitrogen Metabolism problems
Search Results
Correct Answer: Glycine
Correct Answer: Fe3+
Correct Answer: NADH is produced
Correct Answer: complex II
Correct Answer: oxygen
Correct Answer: ammonia into a less toxic form
Correct Answer: Carbon dioxide
Correct Answer: 1 molecule of aspartic acid, 1 molecule of ammonia, 1 molecule of carbon dioxide, 3 molecules of ATP
Correct Answer: 16
Correct Answer: 1 molecule of fumaric acid, 1 molecule of urea, 1 molecule of AMP, 2 molecules of ADP
Comments
There are no comments.More in Biochemistry:
Programming
Copyright ©CuriousTab. All rights reserved.