Gram positive bacterias have a cell wall which will stain in violet color. Gram negative bacterias, howâ¦ever, have an extra layer of cell wall around them which prevents the cell wall from being dyed. These gram negative bacterias will need an additional stain called safranin to make the bacterias redish color.
Answer   Pasta is a source of carbohydrates, so to the extent that the body needs carbohydrates, absolutely! And most pasta is pretty much low or no fat. The sauce eaten â¦ with the pasta is often very calorie and fat rich with meats, oils, cheeses and butter.
Pasta is what's known as a complex carbohydrate. Complex carbohydrates are starches, whereas the other type of carbohydrate -- simple carbs -- are sugars. Fiber is another carbohydrate that's important to your health because it aids digestion and can help reduce cholesterol and stabilize your blood sugar levels.