What ion is responsible for repolarization?
difference in concentration of charged particles between different parts of the cell
Membrane only permeable to K+
based on chemical gradient- efflux of K+
generated electrical gradient opposes chemical force- must reach equilibrium potential (no net movement across membrane)
Chemical gradient (much more K+ inside cell)
What energy-costly mechanism is constantly at work to upkeep proper chemical gradients of the cell
electrical potential that would exactly balance chemical potential due to concentration gradient:
E(ion)= (RT/zF) x ln Co/Ci
Purpose of Goldman Equation
What produces hyperpolarization?
negative overshoot due to potassium efflux
"StudyBlue is great for studying. I love the study guides, flashcards and quizzes. So extremely helpful for all of my classes!"Alice , Arizona State University
"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"Tim , University of Florida
"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly!Â I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"Jennifer , Rutgers University
"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"Justin , LSU