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.
The nutritional value of plantain makes it stand out as a very important addition to any healthy living diet plan. Believe it or not, plantain is one of the healthiest foods in the world in terms of its nutrient content. It is reach in low GI carbohydrate, dietary fibre, and vitamins and minerals.