Definite volume refers to something which has a consistent, unchanging volume, which in practical terms may mean a static mass and density, or a predetermined shape, either of which will dictate volume. A cube with side length l has a definite volume because it can only be exactly one size.
One cup of raw plantains or one medium sized raw plantain contains: ~180-200 calories, 0.5 g total fat, 47-50 g carbohydrates, 3.5 g dietary fiber, 22 g sugar and 2 g protein. Because of it's high carbohydrate content, you need to monitor your portion, otherwise your blood sugars will spike.
Tips for Carb Counters. Generally, non-starchy vegetables have about 5 grams of carbohydrate in Â½ cup cooked or 1 cup raw. Most of the carbohydrate is fiber so unless you eat more than 1 cup of cooked or 2 cups of raw at a time, you may not need to count the carbohydrates from the non-starchy vegetables.