metabolism of amino acid

Which of the following organisms is ammonotelic?

• a. Birds

• b. Fishes

• Mammals

• 1. d. Amphibians

  
  

Which stage of amino acid catabolism involves the formation of α-keto acids and ammonia?

• a. Transamination

• d. Biosynthesis of Urea

• c. Metabolism of Ammonia

• b. Oxidative Deamination

What is the primary detoxified form of ammonia before excretion?

• a. Urea

• d. Creatinine

• . Uric acid

• b. Glutamine

Which enzyme catalyzes the synthesis of carbamoyl phosphate in the urea cycle?

• a. Arginase

• b. Carbamoyl phosphate synthetase I

• d. Argininosuccinate lyase

• c. Argininosuccinate synthase

Hyperammonemia Type II is associated with a deficiency in which enzyme?

• a. Carbamoyl phosphate synthetase I

• b. Ornithine transcarbamoylase

• c. Argininosuccinate synthetase

• d. Arginase

11. Which amino acid is a precursor for the synthesis of nitric oxide (NO)?

• 11. b. Glutamine

• 11. c. Arginine

• 11. a. Glycine

What enzyme converts arginine into ornithine and urea in the urea cycle?

• c. Ornithine transcarbamoylase

• d. Carbamoyl phosphate synthetase I

• b. Argininosuccinate synthase

• a. Arginase

Alkaptonuria is caused by a defect in which enzyme?

• d. Glutamate semialdehyde dehydrogenas

• c. Phenylalanine hydroxylase

• b. Homogentisate oxidase

• a. Tyrosine hydroxylase

Hartnup disease is characterized by a defect in the transport of which amino acid?

• d. Cysteine

• c. Phenylalanine

• b. Tryptophan

• a. Tyrosine

What is the primary product synthesized from glycine in the body?

• b. Histamine

• S-adenosylmethionine (SAM)

• d. Bile acids

• a. Creatine phosphate