Active transport processes have been identified for various ions, vitamins, sugars, and amino acids.

现已确认,多种离子 、 维生素类 、 糖类和氨基酸类都采取这种主动转运方式.

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Drugs may cross a biologic barrier by passive diffusion, facilitated passive diffusion, active transport, or pinocytosis.

药物可通过被动扩散 、 易化被动扩散 、 主动转运或胞饮作用等方式穿越生物屏障.

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Active transport appears to be limited to drugs structurally similar to endogenous substances.

主动转运似乎只限于其结构类似于机体内源性物质的那些药物.

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Active transport: This process is characterized by selectivity and saturability and requires energy expenditure the cell.

主动转运这种转运过程的特征是选择性和饱和性,需要细胞的能量消耗.

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Anything that interferes with the provision of energy will interfere with active transport.

任何能够影响到能量供应的因素都能影响到主动运输.

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