Physics, 11.04.2020 01:55 terryonsavage543
The net charge difference across the membrane, just like the charge difference across the plates of a capacitor, is what leads to the voltage across the membrane. How much excess charge (in picocoulombs, where 1 pc = 1x10-12 C) must lie on either side of the membrane of an axon of length 2 cm to provide this potential difference (0.07 V) across the membrane? You may consider that a net positive charge with this value lies just outside the axon cell wall, and a negative charge with this value lies just inside cell wall, like the equal and opposite charges on capacitor plates. Previous Info:An average cylindrical axon has a cell wall that is d = 5 × 10 − 9 m thick and has a radius r = 5 × 10 − 6 m. The dielectric constant of the lipid bilayer κ = 7. Find the capacitance then of the axon cell wall membrane for an axon of length 4 cm. You may consider the cell membrane as having the geometry of a parallel plate capacitor by unrolling the cylinder, which yields parallel capacitor plates with an area A = 2 π r l where l = 1.0 cm is the length of the axon. Give your answer to the nearest nanofarad where 1 nanofarad = 1x10-9 F.
Answers: 1
Physics, 21.06.2019 18:30
An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball
Answers: 1
Physics, 23.06.2019 12:00
Aforce of 500.0 is represented graphically with its tail at the origin and the tip ointed in a direction 30.0° above the positive x-axis. what are the x- and y- components of the vector?
Answers: 3
The net charge difference across the membrane, just like the charge difference across the plates of...
English, 15.10.2020 09:01
Biology, 15.10.2020 09:01
Mathematics, 15.10.2020 09:01
Mathematics, 15.10.2020 09:01
Mathematics, 15.10.2020 09:01
Biology, 15.10.2020 09:01
Mathematics, 15.10.2020 09:01
Computers and Technology, 15.10.2020 09:01
Social Studies, 15.10.2020 09:01
Chemistry, 15.10.2020 09:01
Spanish, 15.10.2020 09:01
Physics, 15.10.2020 09:01