Background
The molecules of carbohydrates, proteins, and lipids compound foods. Human beings eat foods and take energy in their body by burning these molecules. Calories indicate energy, one gram of carbohydrate and protein contains 4.5 calories, and 1 gram of lipid contains nine calories. One calorie raises one degree centigrade of one gram water. Carbohydrates work as fast energy for human’s body, and lipids work as slow energy for human’s body.
Title The caloric contents of carbohydrates, proteins, and lipids
Background The molecules of carbohydrates, proteins, and lipids compound foods. Human beings eat foods and take energy in their body by burning these molecules. Calories indicate energy, one gram of carbohydrate and protein contains 4.5 calories, and 1 gram of lipid contains nine calories. One calorie raises one degree centigrade of one gram water. Carbohydrates work as fast energy for human's body, and lipids work as slow energy ...