生物化学答案2023

第七章测试

1.In the urea cycle, one “N” in the urea molecule comes from NH₃, another “N”comes from（ ）
A:Aspartate B:Citrulline C:Ornithine D:Arginine
答案:A
2.Urea is synthesized in（ ）.
A:Heart B:Kidney C:Spleen D:Liver 3.During deamination, L-amino acid oxidase has higher activity and is found widely in bodies（ ）.
A:错 B:对 4.The major transaminase in the heart is ___, and in the liver is ___.
5.Briefly state the major processes and physiological significance of the alanine-glucose cycle.