阿摩線上測驗
34. What is one unit of urea biosynthesized from?
(A) two units of NH4+ and one unit of CO2
(B) one unit of 
as well as one ne unit of carboxyl and amino groups of arginine
(C) one unit of 
, one carboxyl group of aspartate, and one unit of amino group of arginine
(D) one unit of 
, one carboxyl group of arginine, and one unit of amino group of aspartate
(E) one unit of 
, one unit of CO2 and one unit of amino group of aspartate.
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統計： 尚無統計資料
統計： 尚無統計資料
