多选题What is the driving force? A、 The concentration gradient B、 The conductance of an ion C、 The equilibrium potential for an ion D、 The difference between the membrane potential and equilibrium potential多选题The resting membrane potential of neurons is largely determined by: A、 sodium B、 potassium C、 calcium D、 chloride简答题According to the Goldman–Hodgkin–Katz equation, if the membrane were more permeable to Na+ at rest, instead of K+, what would the approximate resting membrane potential be? A、 –70 mV B、 +50mV C、 –79 mV D、 +100mV多选题What best describes current? A、 Resistance B、 Movement of charge C、 Potential difference D、 Storage of charge多选题Which equation is used to determine the equilibrium potential of any ion? A、 Ohm’s law B、 The driving force C、 The Nernst potential D、 The Goldman–Hodgkin–Katz equation多选题How did Hodgkin and Huxley determine the ions contributing to the action potentials? A、 Using pharmacological drugs to block specific ion channels B、 Measuring concentration changes of different ions in the extracellular solution C、 Measuring concentration changes of different ions in the intracellular solution D、 Changing concentration of different ions in extracellular solution to see the effect on electrophysiological recordings多选题Why does the Na+ conductance decrease after a short time? A、 The channels close B、 The cell reaches ENa C、 The Na+ channels inactivate D、 The K+ channels start to open多选题What is the voltage dependence of ion channels? A、 Current through the channels changes along with voltage change B、 Conductance of the channels changes along with voltage change C、 Resistance of the channels is a constant D、 Membrane voltage changes after opening of channels多选题The depolarization phase of action potentials is caused by: A、 the opening of voltage gated calcium channels B、 the opening of voltage gated potassium channels C、 the opening of voltage gated sodium channels D、 the opening of voltage gated chloride channels