🎁BACK-TO-SCHOOL DEAL. Subscribe Now to get 40% OFF at only 8.49 USD/month, only valid until Sep 30th, 2024

Question

Question
The Nernst equation can be used to predict the membrane potential resulting from all permeable ions. intracellular ion concentrations. extracellular ion concentrations. the membrane potential resulting from permeability to a single ion.

Asked By DreamyVoyager53 at

Answered By Expert

Jonathan

Expert · 1.0k answers · 1k people helped

Sign in to see the answer

Step 1/2

The equilibrium potential (sometimes called the Nernst potential) for a single ion over a semipermeable membrane is mathematically described by the Nernst equation. It gives a rough estimate of the electrical potential difference that would counteract the ion's propensity to move due to the gradient in its concentration. The equation has the name of its creator, German physicist Walther Nernst.

Explanation:

The Nernst equation is as follows:

Explanation:

E = RT ​/ zF ln[ ion ] outside ​/[ ion ] inside ​

Explanation:

Where:

Explanation:

Explanation:

The Nernst equation essentially calculates the electrical potential that would exist across a membrane if the ion were at equilibrium, meaning that the ion's diffusion due to its concentration gradient is exactly balanced by its electrical attraction due to the membrane potential.

Explanation:

It's important to note that the Nernst equation is a simplified model and assumes certain conditions, such as the membrane being permeable to only one type of ion and that the ion's movement is solely driven by its concentration gradient and electrostatic forces. In reality, the membrane potential of cells is influenced by the permeabilities and concentrations of multiple ions, as well as other factors like active transport mechanisms.

Step 2/2

The Nernst equation can be used to predict the membrane potential resulting from permeability to a single ion. It provides an estimate of the equilibrium potential for a specific ion across a cell membrane, based on the ratio of its concentrations inside and outside the cell.

Explanation:

Final Answer

In summary, the Nernst equation is a simplified model that provides the equilibrium potential for a single ion based on its concentration gradient. It doesn't account for the complexities of multiple ions, changing ion concentrations, or the combined effect of various permeable ions on the membrane potential.

🧑‍🏫 More Questions

<div><p>All VBA data types are correct EXCEPT</p></div>

What is the IUPAC name for the following compound?

<p>100.0 % 40 in C++?</p>

[10] 1. Let V be a vector space with dimV = 5. Fix two linearly independent vectors u, EV and set B = {u, v}. Define W :=span B Determine which of the following statements are true/false, Circle the answer that best applies (a) u and v are parallel. True False (b) W is a subspace of V. True False (c) W is a subspace of R5 True False (d) u= (1 1, ..., 15) for some I1, ...,15 € R. True False (e) The set B = (u, v) is an ordered basis for R?. True False (f) The set B = (u, v) is an ordered basis for W. True False (g) W is a 2-dimension al subspace of V. True False (h) W is a subspace of R2 True False (i) For w EW we have [w]B € R2. True False G) (u + U] B = I True False

What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA Multiple Choice It contains A. O It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs. It contains T and not U. What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA Multiple Choice It contains A. It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs.