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.
Nutritional Value. One average-sized banana provides just over 100 calories, 1.3 grams of protein, less than half a gram of fat and about 27 grams of carbohydrates, of which 14.4 grams are in the form of simple sugars. It also supplies 3 grams of dietary fiber, or 12 percent of the recommended daily value.