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Q. |
Nucleotide breakdown releases purines and pyrimidines. Which of the following is NOT their subsequent fate? |
A. | re-used to form nucleosides, nucleotides and nucleic acids |
B. | excreted unchanged in urine |
C. | directly enter the urea cycle |
D. | pyrimidines are catabolised to carbon dioxide and ammonia |
E. | purines are catabolised to uric acid |
Answer» C. directly enter the urea cycle |
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