The 'patch clamp' technique allow scientists to study individual ion channels and their properties.Group of answer choicesTrueFalse

Which structural features of K+ channels account for: a) ion selectivity, b) voltage sensitivity, and c) ion conductance?

Select all that applyChoose the properties of voltage-gated channels.Multiple select question.They open and close in response to small voltage changes in the membrane potential.They allow most ions to pass through depending upon their concentration gradient.They open or close when a ligand binds to a receptor that is part of the ion channel.They are specific for the type of ion that passes through them.

What causes ion selectivity in channels?Group of answer choicesThe electrical resistance of the neuron.The specific pore size and charged residues along the pore.The amount of myelin around the axon.The length of the axon hillock

Lipid membranesMembrane & Ion Channel Proteins

Which of the following experimental techniques would be most appropriate for recording the opening and closing of a single ion channel?Group of answer choicesintracellular "sharp" electrode recordingpatch clamp electrode recordingintracellular calcium indicator recordingretrograde labellingextracellular recording