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- Question
Nitrate reduction can be carried out by
Options- A. only microorganism
- B. plant and microorganism
- C. only plants
- D. none of these
- Correct Answer
- plant and microorganism
- 1. 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
- 2. How many molecules of ATP are hydrolysed to form two molecule of ammonia?
Options- A. 10
- B. 5
- C. 16
- D. 15 Discuss
- 3. 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
- 4. 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
- 5. 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
- 6. The symptoms of retinol excess are
Options- A. bone fragility
- B. nausea
- C. weakness
- D. all of these Discuss
- 7. Which of these hormones is a catecholamine?
Options- A. Follitropin
- B. Norepinephrine
- C. Tetraiodothyronine
- D. Tetrahydrofolate Discuss
- 8. The vitamin niacin is part of the __________ molecule.
Options- A. ferredoxin
- B. pyridoxal phosphate
- C. pyrophosphate
- D. NAD+ Discuss
- 9. Vitamins are essential because the organism
Options- A. can't synthesize these compounds at all
- B. can synthesize these compounds partially
- C. can't synthesize these compounds in the adequate amounts
- D. none of the above Discuss
- 10. ?-carotene together with ?-carotene, ?-carotene and cryptoxanthine are synthesized by
Options- A. plants
- B. animal
- C. plants and animals both
- D. none of these Discuss
Nitrogen Metabolism problems
Search Results
Correct Answer: 1 molecule of fumaric acid, 1 molecule of urea, 1 molecule of AMP, 2 molecules of ADP
Correct Answer: 16
Correct Answer: 1 molecule of aspartic acid, 1 molecule of ammonia, 1 molecule of carbon dioxide, 3 molecules of ATP
Correct Answer: Carbon dioxide
Correct Answer: ammonia into a less toxic form
Correct Answer: all of these
Correct Answer: Norepinephrine
Correct Answer: NAD+
Correct Answer: can't synthesize these compounds at all
Correct Answer: plants
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