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.
Grain products like bread, cereal, rice, and pasta are good for you. They are important sources of vitamins and minerals. Breads, cereals, rice, and pasta are also good sources of carbohydrates like starch and fiber. Many people think that starchy foods like breads, rice and pasta are fattening.
Whole-grain pastas are generally high in fiber, protein and various other essential nutrients. Whole-grain pasta contains about 37g of good carbohydrates per serving, reports Common Sense Health.Choose these over white pastas, where the grain has been refined and stripped of most of its nutritional value.uinoa. Quinoa is a less commonly used grain that is high in fiber and provides healthy carbohydrates at about 30g per serving. Quinoa can be used as a replacement for rice, couscous or pasta. This good carbohydrate also offers a significant amount of plant-based protein, while being low in fat and calories.