MCQ Book Questions

Q51800. Daily uric acid excretion in adult men is

Q51801. Dietary purines are catabolised in

Q51802. De novo synthesis of pyrimidine nucle- otides occurs in

Q51803. An enzyme common to de novo synthesis of pyrimidine nucleotides and urea is

Q51804. The nitrogen atoms of pyrimidine nucleus are provided by

Q51805. The carbon atoms of pyrimidine nucleus are provided by

Q51806. Nitrogen at position 1 of pyrimidine nu- cleus comes from

Q51807. Nitrogen at position 3 of pyrimidine nu- cleus comes from

Q51808. The carbon atom at position 2 of pyrimi- dine nucleus is contributed by

Q51809. Aspartate contributes the following carbon atoms of the pyrimidine nucelus:

Q51810. The first pyrimidine nucleotide to be formed in de novo synthesis pathway is

Q51811. Conversion of uridine diphosphate into deoxyuridine diphosphate requires all the following except

Q51812. Amethopterin and aminopterin decrease the synthesis of

Q51813. For synthesis of CTP and UTP, the amino group comes from

Q51814. CTP synthetase forms CTP from

Q51815. For the synthesis of TMP from dump, a coenzyme is required which is

Q51816. All the enzymes required for de novo synthesis of pyrimidine nucleotides are cytosolic except

Q51817. During de novo synthesis of pyrimidine nucleotides, the first ring compound to be formed is

Q51818. Tetrahydrofolate is required as a coen- zyme for the synthesis of

Q51819. All of the following statements about thioredoxin reductase are true except: