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.
How Much Fiber? All bananas contain fiber, and the amount varies with the banana's size. A small banana of 6 to 7 inches in length contains 2.6 grams of fiber; a medium banana contains 3.1 grams of fiber; and an extra large banana -- over 9 inches long -- contains 4 grams of fiber.