To a nalyze: The following: The equilibrium potential for potassium or K+ (EK) when its extracellular concentration rises from 5mM (millimolar) to 10mM. Whether the change is a depolarization or a hyperpolarization compared to normal EK. Introduction: The intracellular and extracellular fluids have different inorganic ions and they are maintained at specific concentration. When the concentration is changed, an action potential is produced by each ion across the plasma membrane and is known as membrane potential. The membrane potential is generally determined by K+ ion concentration across the membrane because the plasma membrane is more permeable to K+ ions than any other ions.

Question

Want to see the full answer?

Answer 1

Question

Chapter 6, Problem 36RA

Summary Introduction

To analyze:

The following:

The equilibrium potential for potassium or K+ (EK) when its extracellular concentration rises from 5mM (millimolar) to 10mM.

Whether the change is a depolarization or a hyperpolarization compared to normal EK.

Introduction:

The intracellular and extracellular fluids have different inorganic ions and they are maintained at specific concentration. When the concentration is changed, an action potential is produced by each ion across the plasma membrane and is known as membrane potential. The membrane potential is generally determined by K+ ion concentration across the membrane because the plasma membrane is more permeable to K+ ions than any other ions.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000

Match the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2