The main concepts required to solve this problem are the current, charge, and time.
Initially, write the equation for the current passing through the conductor per unit time. Use this equation and calculate the average current through the cell membrane.
The equation for the current passing through the conducting wire per unit time is,
Here, Q is the amount of charge, and t is the time taken by the charge to pass through the conductor between the two potentials.
Electric current can be defined as the amount of charge that passing through the conducting wire between the potential differences per unit time. The electric current can be denoted by the letter I. The current can be measured with the unit of Ampere, that is A.
The expression for the current that passing through the conductor is,
Here, Q is the amount of charge, and t is the time taken by the charge to pass through the conductor between the two potentials.
The equation for the current passing through the cell membrane that found in the above step1 is,
Here, Q is the charge flowing through the membrane, and t is the time.
Substitute for Q, and for t in above equation.
Ans:
The average current passing through the membrane is .
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference....
PLEASE ANSWER WITH UNITSNerve cells maintain a charge separation across their cell membrane. The cell membrane in a particular cell is 13 nm thick and the cell can be modeled as a cylinder with a diameter of 11 um and a length of 90 um. If the potential difference across the cell membrane is 50 mV, what is the charge stored on the cell? (Assume that the dielectric constant of the cell membrane is 1.0.)
10 > What is a membrane potential? the difference in molecular concentrations across the cell membrane the ability of a molecule to pass through a membrane the difference in charge across the cell membrane the number of molecules that cross the membrane in an hour
Ion channels that switch open and close as the potential difference across the cell membrane changes are an essential component of the cell membrane. Most such channels contain a molecular ion with a significant electrical charge at their core. Suppose a protein contains a molecular ion with a charge of -12e and that this protein is embedded in a cell membrane that has a thickness of 9 nm. What are the magnitude and direction of electric force on the ion...
A typical cell has an electric potential difference across its cell membrane, The electric potential interior to the cell is 70mV less than that on the exterior. Under certain circumstances, the cell can redistribute charge so that the electric potential inside is 40 mV greater than that outside. Assuming the membrane is 12 nm thick and that the net electric field inside it is uniform, how does that field change in the transition from having an interior that is 70...
The potential difference across the cell membrane is due to the unequal distribution of ________ across the membrane. phospholipids and proteins acids and bases carbohydrate molecules water molecules cations and anions
(a) Find the capacitance of the cell membrane. (b) Suppose the potential difference across the cell wall is 92 mV. Find the magnitude of the charge stored on either side of the cell wall. hboard> My courses > Spring Semester 2019 SP2019-PHYS-142-001 Topic 3 HW CH18.2 Capacitance due 1/22 Question 3 Partially correct 0.33 points out of 1.00 The fuids Inside and outside a cell are good conductors separated by the cell wall, which is a dielectric. Thus the cell...
The action potential occurs when the voltage across a cell membrane experiences an increase from the resting potential (−70.mV) to about 30.mV. This depolarization, in turn, causes a similar response all along the cell membrane; the result is an electrical impulse that sends a signal along the axon of a neuron. The cell membranes can be about 5.0nm across and have an electric field across them due to the change in potential. What is the electric field across the membrane...
The electric potential difference across the membrane of a body cell is +0.083 V (higher on the outside than on the inside). The cell membrane is 8.1×10−9 m thick. a. Determine the magnitude of the E⃗ field through the cell membrane.
A nerve cell is shaped like a cylinder. The membrane wall of the cylinder has a +0.07-V potential difference from the inside to the outside of the wall. To help maintain this potential difference, sodium ions are pumped from inside the cell to the outside. For a typical cell, 10^9 ions are pumped each second. A) Determine the change in chemical energy each second required to produce this increase in electric potential energy.?
a. Determine the average magnitude of the E⃗ field across a body cell membrane. A 0.070-V potential difference exists from one side to the other and the membrane is 7.4 ×10−9 m thick. Assume that the dielectric constant is 1.0 (it is actually somewhat larger). b. Determine the magnitude of the electrical force on a sodium ion (charge +e) in the membrane.