题目内容

一摩尔丙酮酸粒体内彻底氧化生成CO2及H2O可产生多少摩尔ATP?

A. 8
B. 12
C. 14
D. 15

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为明确诊断首先要进行

A. 血淀粉酶测定
B. 急诊钡餐造影
C. 急诊静脉胆道造影
D. 腹腔穿刺

过敏反应时引起组织水肿的原因是

An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ,it will probably pass many (73) until it reaches the router attached to the destination network.A router receives a (74) from a network and passes it to another network.A router is usually attached to several networks.When it receives a packet,to which network should it pass the packet? The decision is based on optimization: Which of the available (75) is the optimum pathway?

A. modems
B. routers
C. switches
D. computers

下列关于氧化磷酸化偶联机制的化学渗透学说的描述哪一项是错误的?

A. H+不能自由通过线粒体内膜
B. 粒体膜内外H+形成跨膜梯度
C. 膜外侧pH比膜内侧高
D. 能量经ATP合酶的体、头部由Pi+ADP合成ATP

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