Structure And Properties Of Amino Acids(Biochemistry ) Questions and Answers

Question 1. Almost 85 % of produced millions of tones of ammonia (NH₃) is used for making
  1.    glass
  2.    fertilizers
  3.    urea
  4.    nitrogen
Explanation:-
Answer: Option B. -> fertilizers
Answer: (b).fertilizers
Question 2. Free ammonia combined with glutamate to yield glutamine by the action of
  1.    Glutaminase
  2.    Glutamine synthase
  3.    Glutamate dehydrogenase
  4.    Amino transferase
Explanation:-
Answer: Option B. -> Glutamine synthase
Answer: (b).Glutamine synthase
Question 3. Pyridoxal phosphate and its aminate form, pyridoxamine phosphate are tightly bound coenzymes of
  1.    Amino transferases
  2.    Glutaminase
  3.    Glutamine synthase
  4.    Glutamate dehydrogenase
Explanation:-
Answer: Option A. -> Amino transferases
Answer: (a).Amino transferases
Question 4. Glutamate is metabolically converted to α-ketoglutarate and NH₄⁺ by a process
  1.    Oxidative deamination
  2.    Transamination
  3.    Reductive deamination
  4.    Deamination
Explanation:-
Answer: Option A. -> Oxidative deamination
Answer: (a).Oxidative deamination
Question 5. The necessary coenzyme for transamination reactions is
  1.    Pyridoxal phosphate
  2.    Thiamine pyrophosphate
  3.    NAD
  4.    Coenzyme A
Explanation:-
Answer: Option A. -> Pyridoxal phosphate
Answer: (a).Pyridoxal phosphate
Question 6. The combined action of aminotransferase and glutamate dehydrogenase is referred as
  1.    Oxidative deamination
  2.    Transamination
  3.    Reductive deamination
  4.    Transdeamination
Explanation:-
Answer: Option D. -> Transdeamination
Answer: (d).Transdeamination
Question 7. Which of the following operates at an important intersection of carbon and nitrogen metabolism?
  1.    Amino transferases
  2.    Glutaminase
  3.    Glutamine synthase
  4.    Glutamate dehydrogenase
Explanation:-
Answer: Option D. -> Glutamate dehydrogenase
Answer: (d).Glutamate dehydrogenase
Question 8. Glutamine is converted to glutamate and NH₄⁺ by
  1.    Amino transferases
  2.    Glutaminase
  3.    Glutamine synthase
  4.    Glutamate dehydrogenase
Explanation:-
Answer: Option B. -> Glutaminase
Answer: (b).Glutaminase
Question 9. The first step in the catabolism of most L-amino acids once they have reached the liver is promoted by
  1.    Amino transferases
  2.    Glutaminase
  3.    Glutamine synthase
  4.    Glutamate dehydrogenase
Explanation:-
Answer: Option A. -> Amino transferases
Answer: (a).Amino transferases
Question 10. Trypsinogen is converted to its active state by
  1.    Enteropeptidase
  2.    Glutaminase
  3.    Glutamine synthase
  4.    Glutamate dehydrogenase
Explanation:-
Answer: Option A. -> Enteropeptidase
Answer: (a).Enteropeptidase
© Lakshya_Education.com, All Right Reserved.
Contact Us services