Channel protein
; hydrophilic pore
Ion channel - highly selective pore
open and close
passive transport-diffuse
Nerve cell - Ion channel 이용
Ion channels ion-selective and fluctuate between open and closed states
Ion channel 의 Property
-ion selectivity
-open and close(gate)
Specific stimulus에 의해 open
Contents
Ion channels ion-selective and fluctuate between open and closed states
The membrane potential in animal cells depends mainly on K⁺ leak channels and the K⁺ gradient across the plasma membrane
The resting potential decays only slowly when the Na⁺- K⁺ pump is stopped
The three-dimensional structure of a bacterial K⁺ channel shows how an ion channel can wo
Program (1) : Channels
Experiments (1-1) : Potassium Channels
A) The proability that the channel is open increases in a sigmoid manner with time. Explain why?
Potassium(K+) channel의 경우 Sodium channel(Na+)과 달리 inactivation gate가 없고 activation gate만 4개를 가지고 있으며, 이를 n gate라고 한다. 막전압의 변화는 세포막에 존재하는 전하를
Ⅰ. Current status of Korea's marketing channel
After opening of marketing industry in 1996, a variety of new companies began to emerge in South Korea. The rapid growth of discount stores, TV home shopping and Internet shopping make the marketing industry change rapidly. This phenomenon in the marketing market means that marketing firms stick together to achieve the economies of scale. Accordi
1. 실험목적
1. 측벽에 의한 유속의 변화
2. 수심에 따른 유속의 변화
3. 자유표면의 유속의 변화
2. 실험이론
2.1 유체(Fluid)
고체는 정적인 변형의 의해 전단응력에 저항 할 수 있으나 유체는 그러하지 못하다. 유체는 그것에 작용되는 전단응력이 아무리 작다고 하여도 운동을 시작한다. 유체는 전단