If an ion has the same concentration on both sides of the membrane, then Eion will be: O Positive O Negative O Zero O Impossible to determine

The membrane separating compartments A and B of the following chamber is permeable to Cl- ions (gCl = 5) but impermeable to water and K+. The initial concentrations of KCl in compartments A and B, before diffusion has occurred, are presented below. Use this information to answer questions 9-12. Note: Whenever necessary, consider compartment A as the ICF and compartment B as the ECF. KCl = 10 mM A KCl = 150 mM B 9. After equilibrium, the potential of compartment A will be _____mV (include polarity) compared to a reference of 0 mV. Consider compartment B as the outside. A) -70 mV B) 70 mV C) -90 mV D) 90 mV 10. At equilibrium, the flux of Cl- from compartment A to compartment B will be ______ the flux of Cl- from compartment B to compartment A. A) equal to B) less than C) more than 11. Increasing the concentration of [Cl-] in compartment B from 150 mM to 200 mM will ______________. A) make ECl more positive B) make EK more negative C) make ECl more negative D) not change the value of ECl…

Explain the contribution of the Na+/K+ pump activity to the genesis and maintenance of the resting membrane potential and indicate which category of membrane transport the Na+/K+ pump belongs to

One of the systems of diabetes of mellitus (sugar diabetes) is extreme thirst. What brings about  this thirst? Explain in term of osmosis.

Do you think healthcare professionals have met the challenge of helping people find suitable nutritional supplements? Why or why not? How might socioeconomic status come into play when choosing between or within prescription medications or OTC medications/supplements/herbs? If someone needed to determine if nutrient status was being compromised because of an interaction, what tests could be done?

6) Consider the mechanism of net NaCl secretion across an epithelium shown below (in attachment) What provides the driving force for Cl- entry through the basolateral membrane into cell?

Does the Solute inside or outside the cell?

Under what circumstances could ions flow through anion channel from a region of lower ion concentration toa region of higher ion concentration?

*** fluorescence in bleached area- BLEACH WITH LASER BEAM bleach Protein 1 bleached area RECOVERY Figure 10-13 Molecular Biology of the Cell 6 (Garland Science 2015) Protein 2 *** ** *** time The diffusion/exchange rate of a protein can be measured by photobleaching techniques such as FRAP. When there is protein exchange (i.e. if the protein is mobile), fluorescence recovery in the bleached region occurs, as shown in the figure above. The graphs below show the fluorescence measurement of an area in the cell before and after bleaching for protein 1 and protein 2. Which protein has lower mobility? Protein 1 Protein 2 fluorescence in bleached area->> fluorescence in bleached area bleach BLEACH time RECOVERY time

Which are the 7 membranes that the ion needs to cross