2007%20Chapter%203%20Supplemental%20Images

2007%20Chapter%203%20Supplemental%20Images - Chapter 3...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3 Supplemental Images
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
An “Interlude” for Relevant Terminology Some terms used to describe the electrical properties of membranes. You may have met some of these terms in your text or in a physics or another biology class. Voltage (V): force exerted on a charged particle. Also called electrical potential or potential difference between two specified locations. Unit of measurement is volts (V). Usually measured in millivolts (mV). A subscript after the V indicates a voltage measurement for a specific cellular structure, e.g., V m = membrane potential. Vm = -70mV (inside relative to the outside; reference is outside) Current (I): rate, amount, or number of charged particles that flow from one point to another. Unit of measurement is ampere s or amps (A). Usually measured in milliamps or smaller. Term may be applied to flow of a specific ion, e.g., I Na = Na+ current, or cation current through a channel or maybe through the entire membrane
Background image of page 2
Terminology (cont.)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

2007%20Chapter%203%20Supplemental%20Images - Chapter 3...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online