(Solved): 2. Name the equilbrium potential(s) that mainly determine the resting membrane potential of a cell ...

2. Name the equilbrium potential(s) that mainly determine the resting membrane potential of a cell? (1 point) 3. How does increasing K+ concentration in the affect (a) the equilibrium potential of K+ and (b) resting membrane potential (assuming that Ena+ doesn't change)? (1 point) 4. For most neurons, the extracellular concentration of chloride ions (Cl-) is 108 mM, while the intracellular concentration of Cl- is 5 mM. a. Use Nernst equation to calculate the equilibrium potential of Cl-. (1 point) b. If the plasma membrane becomes more permeable to Cl-, would there be Cl- influx or Cl- efflux at an RMP of -70 mV? Why? (1 point) 5. The figure below is a sketch of an action potential recording. a. Label the x and y axes and name the unit. (1 point) b. Letters a, b, and c indicate phases of the action potential. Name a & b. (1) points) c. State the ion movement responsible for phases a & b. (1 points) y axis b C x axis 6. What type of graded potential triggers an action potential? How? (1 point)