Biochemistry - Nitrogen Metabolism

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Exercise :: Nitrogen Metabolism - Section 1

  • Nitrogen Metabolism - Section 1
1. 

How many molecules of ATP are hydrolysed to form two molecule of ammonia?

A. 10
B. 5
C. 16
D. 15

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

2. 

The nitrogen atoms of urea produced in the urea cycle are derived from

A. nitrate
B. ammonia and aspartic acid
C. nitrite
D. ammonia

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

3. 

The products of urea cycle are

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

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

4. 

Nitrate reduction can be carried out by

A. only microorganism
B. plant and microorganism
C. only plants
D. none of these

Answer: Option B

Explanation:

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5. 

Which of the following is used as carbon atom source while producing urea in the urea cycle?

A. Arginine
B. Aspartic acid
C. Carbon dioxide
D. Glucose

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.