Avoiding Surcharges. Because airlines charge a peak travel day surcharge on the most popular days of travel -- Sunday, Monday and Friday -- you can get the best discounts on those off-peak days. However, during the summer, peak and off-peak travel days do not really exist.
Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue, and can also serve as a fuel source. As a fuel, proteins contain 4 kcal per gram, just like carbohydrates and unlike lipids, which contain 9 kcal per gram.
The Function of Protein is to build the body and to repair the body.........!!!!!!!! Structural Support: Proteins make up the hair, nails, muscles etcHormones: Many hormones â¦ are protein in nature; hormones control growth and metabolic activities of the body.Enzymes: Enzymes are globular protein.