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NITROGEN METABOLISM Online Test and Answers Pdf Download :-
These are very useful & Most Asked Questions in your certification Exam. Read all Online Mock Test Exam Question Bank for Beginners Freshers & Experienced.
1. How many molecules of ATP are hydrolysed to form two molecule of ammonia?
A. 10
B. 5
C. 16
D. 15
Answer: C
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: B
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: B
4. Nitrate reduction can be carried out by
A. only microorganism
B. plant and microorganism
C. only plants
D. none of these
Answer: B
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: C
NITROGEN METABOLISM Objective type Questions with Answers
6. Which of the following amino acid do not fall under the category of essential amino acid?
A. Histidine
B. Leucine
C. Glycine
D. Methionine
Answer: C
7. Urea cycle converts
A. ammonia into a less toxic form
B. ketoacids into amino acids
C. amino acids into ketoacids
D. none of these
Answer: A