听力原文:M: Do I look nice in this blue shirt, dear?
W: Don't you think you're too big for it?
Q: What does the woman think of the man's shirt?
(23)
A. It's very nice.
B. Its color is good.
C. It doesn't fit him.
尿素的合成主要在肝脏的线粒体和胞液中进行,合成一分子尿素需消耗四分子ATP,而精氨酸代琥珀酸合成酶是尿素合成的关键酶。 ()
A. 正确
B. 错误
磷酸戊糖途径是生物体内生成5-磷酸核糖的唯一代谢途径。 ()
A. 正确
B. 错误
糖的有氧氧化可以抑制糖的无氧酵解。有氧时,由于酵解产生的NADH和丙酮酸进入线粒体而产能,故糖的无氧酵解受抑制,这种现象称为巴斯德效应。 ()
A. 正确
B. 错误