Indicate true (T) and false (F) statements below regarding ion channels in cellular membranes. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTT.
( ) With patch-clamp recordings, it is possible to study ion transport through a single molecule of a channel protein.
( ) Cells that are not electrically excitable often lack gated ion channels in their plasma membrane.
( ) The aggregate current crossing a patch of plasma membrane represents the degree to which each individual channel is open at that time.
( ) Patch-clamp recordings have shown that any voltage-gated ion channel opens as soon as the membrane potential is altered.