Which of the following compounds have the feedback inhibition effect on purine nucleotide synthesis ( ).
A: IMP
B: uric acid
C: AMP
D: GMP
A: IMP
B: uric acid
C: AMP
D: GMP
举一反三
- Which of the following is the end production of purine nucleotide catabolic metabolism? A: urea B: creatine C: creatinine D: uric acid E: β-alanine
- Which amino acid is involved in both purine and pyrimidine synthesis： A: Asp B: Gln C: Gly D: Asn
- Which of the following is not the direct material of de novosynthesis of purine nucleotide ? () A: glycine B: aspartate C: glutamate D: CO2 E: one carbon unit
- Under the condition of taking allopurinol to cure gout, ( ) are the main excreted compounds instead. A: Urea B: Uric acid C: Hypoxanthine D: Xanthine
- Which of the following is not a cause of metabolic disorders? A: genetic mutations B: hormonal imbalance C: a cell’s failure to recognize a hormone D: feedback inhibition