The organic material in coal is composed mainly of carbon, oxygen, hydrogen, nitrogen, and sulfur. The heat of metamorphism destroys the organic molecules of coal, volatilizing the oxygen, hydrogen, nitrogen, and sulfur. What remains is a nearly pure carbon material that crystallizes into mineral graphite.
Egg White Nutrition Basics. According to the Egg Nutrition Center (ENC), the average egg contains about 6.29 grams of protein, 3.6 of which come from the egg white. In addition to proteins, other nutrients found in the egg white are riboflavin, niacin, folate, vitamin B12, calcium, iron, copper, zinc and sodium.
Best Answer: Eggs are a complete source of protein. Both white and yolks contain proteins. The yolk has fats, while the whites do not. One large egg white has 3.6 grams of protein. The whole egg would have about 6.5 grams of protein. Many people avoid the yolks to eliminate fats, however, Omega Eggs can be a great source of omega 3 essential fatty acids, and the yolks are also a great source of lutein, which is important for healthy vision.