紧急求救啊 有没英语高手。。。。。。。。。。。

来源:百度知道 编辑:UC知道 时间:2024/05/24 07:50:54
一:Movement of drugs crossing cellular barriers
1:Drugs cross celluar barriers mainly (a) by aqueous diffusion(filtration),(b)by lipid diffusion(passive diffusion) and(c) by carrier-mediated transport(active transport and facilitated diffusion).
2:The main factor that determines the rate of passive diffusional transfer across membranes is a drug's lipid solubility.
3:Carrier-mediated transport(e.g:in the renal tube, blood-barrier, gastrointestinal epithelium is important for some drugs that are chemically related to endogenous substances.
二:1:The dose makes the poison.
2:If something is not a poison, it is not a drug.
三:Drugs can do two things to receptors:(1)bind to them (affinity);(2)possibly change their behaviors toward the host cell system(efficacy).
四:The effects of most drugs result from their interactions with macromolecular components of the organism. These interactions alter the function of the pertinent component and thereby initiate

一:横渡多孔的障碍1的药物的运动
:药物发怒celluar障碍主要(a)由含水扩散(滤清), (b)由油脂扩散(被动扩散)和(c)由载体斡旋的运输(活动运输和被促进的扩散)。
2 :确定被动diffusional调动的率横跨膜的主要因素是药物的油脂可溶性。
3 :载体斡旋的运输(即:在肾脏管,血液障碍,食道皮膜为化工与内在物质有关的有些药物是重要的。
二:1 :药量做毒物。
2 :如果某事不是毒物,它不是药物。
三:药物可能做二件事对感受器官:(1)束缚对他们(亲合力); (2)可能改变他们的行为往寄主细胞系统(效力)。
四:多数药物的作用起因于他们的互作用与有机体的大分子组分。 这些互作用修改恰当组分的作用和从而创始生物化学和physiolo