Re: 一个问题# Biology - 生物学
f*n
1 楼
Hope it's not late to answer your questions.
As you said, the movement of ions are often intermediated by ion channels,
which are basically proteins. Those ion channels can be modulated in a couple
of ways. Some of them are modulated by certain molecules, eg. Ca2+, Mg2+
transmitters. Some of them are modulated by voltage. Their probability of
being open can change dramatically when voltage across the membrane changes.
The ions move passively according to the chemical potential.
There are several
As you said, the movement of ions are often intermediated by ion channels,
which are basically proteins. Those ion channels can be modulated in a couple
of ways. Some of them are modulated by certain molecules, eg. Ca2+, Mg2+
transmitters. Some of them are modulated by voltage. Their probability of
being open can change dramatically when voltage across the membrane changes.
The ions move passively according to the chemical potential.
There are several