Ion channel. The potential difference across the ion channel described in Example

| September 29, 2018

Ion channel. The potential difference across the ion channel described in Example is 80 mV. (a)What’s the resistance of the ion channel? (b) The ion channel can be modeled as a cylinder with a length of 6.0 nm and a diameter of 0.35 nm. What’s the resistivity of the fluid filling the channel? (c) At what rate is energy dissipated while the ions are flowing?Example: The cell membrane separates the interior of a living cell from its surroundings. So-called ion channels penetrate the membrane, allowing passage of materials into and out of the cell (Figure 17.2). A particular channel opens for 1.0 ms and allows passage of 1.1 × 104 singly ionized potassium ions during this time. What’s the current in the channel?.transtutors.com/qimage/image09072014845.png” alt=” width=”>

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