The uric acid cycle is a cyclic adaptation of the process used for mammalian purine catabolism. Inosine monophosphate (IMP) is formed which reacts with pyrophosphate to form hypoxanthine and 5-phosphoribosylpyrophosphate (PRPP). This reaction is catalysed by hypoxanthine phosphoribosyltransferase (EC 2.4.
Answer:
a.
Explanation:
It decreases from the aorta to the vena cava.