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Title: physioex : quiz 7 activity 3 Post by: iamnotsuper on Oct 21, 2014 For those who need it.
What effect did increasing the extracellular potassium have on the resting membrane potential? a The resting membrane potential became less negative. b The resting membrane potential disappeared. c The resting membrane potential became more negative. d The resting membrane potential did not change. A What effect did decreasing the extracellular sodium have on the resting membrane potential? a Only a small change occurred, because the sodium channels were mostly open. b The resting membrane potential disappeared. c The resting membrane potential became less negative. d Only a small change occurred, because the resting neuron is not very permeable to sodium. D The channels that provide for the movement of potassium in the resting neuron are _______. a leakage b leakage and chemically gated. c voltage gated d chemically gated A Establishing the resting membrane potential requires energy through the use of the _______. a sodium-glucose pump b sodium leakage channels c potassium-glucose pump d sodium-potassium pump D |