Goldman equation - Study guides, Class notes & Summaries

Assess how altering the external and internal concentrations of various ions impacts equilibrium potential and the RMP - Potassium: Raising the external concentration decreases the equilibrium potential and RMP Sodium: Raising the external concentration raises the equilibrium, potential and RMP, and raising the internal concentration decreases the equilibrium potential. Chloride: Raising the external concentration decreases the equilibrium potential and RMP, and raising the internal concen...

UConn PNB 2274 Exam 2 – Tanner Study Guide with Complete Solutions Principles Electrostatic Attraction - Ans:-- charge attraction - positively charged ions will be attracted to negatively charged ions Principles Chemical (diffusional) Gradients - Ans:-- when a membrane is selectively permeable positively charged ions will flow to the one side making the other side negative due to leak channels. - making one side harder to diffuse with the outside of the cell because it is attracted to th...

Steps for an Action Potential - Depolarizing stimulus, if threshold is met - Na+ and K+ channels begin to open, Na+ enters the cell and depolarizes it, Na+ channels close and K+ channels open fully, K+ exits the cell until it is hyperpolarized, K+ channels close, cell returns to resting membrane potential Membrane permeability of molecules (most to least) - Lipophilic, small & non-polar, small & polar, large & polar, charged Sodium-potassium pump function - Pump 3 Na out, and 2 K in SGLT (...

Negative Feedback -Answer- Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the pancreas Positive Feedback -Answer- Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade Proteins -Answer- Provide selectivity to a membrane Integral proteins -Answer- channels, pores, carriers, enzymes, receptors, second messengers Peripheral proteins -Answer- Enzymes, intracellular, signal mediatiors ATP -Answer- Conv...

CBNS/ STUDY GUIDE 5-6, STUDY GUIDE 3-4, STUDY GUIDE 1-2 QUESTIONS AND ANSWERS, RATED A+/ The Nernst Equation is used to predict: - -The equilibrium potential of a single membrane permeant ion The Goldman Equation is used to predict: - ->The equilibrium potential of a single membrane-permeant ion >The contribution of multiple permeant ions to Em Consider the frog muscle study published by Hodgkin and Horowicz (1959) that was presented in Lecture 5. Doubling [K]o from 10 mM to 20...

NSCI 175 Final (All Learning Objectives) Exam Questions and Answers Explain the reductionist approach - Correct Answer ️️ -Breaking the topic of neuroscience down into smaller pieces (Cognitive, Behavior, Systems, Cellular, Molecular). Pros: can be more detailed; get a better explanation of the topics Cons: can bterm-0e hard to see the big picture Compare different levels of analysis in neuroscience research (molecular, cellular, systems, behavioral, and cognitive neuroscience) - Cor...

Exam 1 Patho- NURS 8022 ACTUAL TOPICS WITH ANSWERS Negative Feedback Positive Feedback Proteins Integral proteins Peripheral proteins ATP Simple/passive diffusion Simple/passive diffusion Factors that affect the net rate of diffusion Osmosis Primary Active Transport Secondary Active Transport Na+- K+ ATPase Ca2+ ATPase H+ ATPase Remember: Sodium Potassium Pump Secondary Active Transport; Co-transport Counter transport How do cardiac glycosides increase cardiac contractility? ...

Factors that depolarize neurons neurotransmitters, voltage, and mechanical pressure (squeezing of the thing) Why do the heads of lipids face both directions in the neuron membrane the heads are hydrophilic as in they like water What about the tails of lipids in the neuron membrane the tails of lipids are hydrophobic as in they tend to stay away from water What is required for a cell to have an action potential Lots of Sodium and Chloride with a small amount of potassium ...

UVIC Biology 225 Solved Exam Prep |Question and Answer| 100% Correct #2024 Nernst equation What is used to calculate the membrane potential for a single ion? Goldman equation What is used to calculate the membrane potential that takes account for all ions permeant through that membrane? loss of myelination Multiple sclerosis is associated with what? ion-channel-coupled receptors, g-protein-coupled receptors, enzyme-coupled receptors linked to an enzyme, enzyme-coupled receptor ass...

Three Fluid Compartments -:- intracellular, interstitial, plasma Membrane permeability of molecules (most to least) -:- Lipophilic, small & non-polar, small & polar, large & polar, charged Sodium-potassium pump function -:- Pump 3 Na out, and 2 K in SGLT (Sodium-glucose linked transporter) function -:- Glucose is transported into the cell using the Na gradient established by the sodium-potassium pump Typical membrane potential -:- -70 mV 2 | P a g e | G r a d e A + | 2 0 24 / 2 ...