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.
They do however, have roughly 14 grams of sugar per serving. Medium bananas are typically 7 to 8 inches and large bananas are closer to 9 inches. One medium banana has around 105 calories and 1.3 grams of protein. Bananas are a great source of potassium, magnesium, fiber and Vitamins C and B-6. They do however, have roughly 14 grams of sugar per serving.