Ion Channels on Cell Membrane 细胞膜离子通道
Another source of information is genetic. Long QT syndrome is caused by defects in ion channels, proteins that maintain heartbeat by controlling the flow of ions across the membrane of heart cells.
长qt综合征的另一个来源是遗传,长qt综合症是由离子通道的变异引起的,蛋白质通过控制离子流经细胞薄膜来维持心跳。
Ion channels sit in a cell's outer membrane and let electrically charged atoms (ions, as they are known in chemical jargon) in and out of the cell.
离子通道位于细胞外膜,使带电荷原子(即化学术语中的离子)可以进出细胞。
Infrared radiation heats up the pit membrane tissue, and TRPA1 channels open when a threshold temperature is reached, allowing ions to flow into the nerve cells and triggering an electrical signal.
红外线使窝器膜组织升温,当达到阈值后TRPA 1通路打开,离子流入神经细胞并催发电信号。
There's a local change in the membrane, that local change involves opening of channels that allow ions to pass through regions where they couldn't pass through before, that results in a change in voltage.
膜上会发生局部变化,局部变化包括离子通道开启,使离子通过,先前不能通过的区域,从而引起电压的变化
Now, sodium and potassium don't ordinarily move across membranes, they're charged molecules, they can't dissolve, they can't permeate through a cell membrane, but they go through because there are channels that allow them to pass through in the membrane.
钠和钾通常是不能跨过细胞膜的,它们都是带电粒子,它们不能溶解在细胞膜中,不能渗透通过细胞膜,但它们之所以能通过细胞膜,全赖膜上离子通道的作用
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