Another action potential can be produced, but only if the stimulus is greater than the threshold stimulus. 1  corresponds to the period when the potassium channels are open (several milliseconds) 2  the nerve cell membrane becomes progressively more 'sensitive' (easier to stimulate) as the relative refractory period proceeds.
According to the International Banana Association, an average-sized banana weighs 120 grams. I'm assuming this does not include the peel because the discussion is in the context of nutritional information. + 78 others found this useful.
In addition to having approximately 1.3 grams of protein, a medium-sized banana also has quite a bit of sugar. If you are following a low-carb diet, you may want to limit how many bananas you eat and measure your portions since a medium-sized banana is not very big. In fact, most store-bought bananas are much larger.