Answer to Question 1
1, They add flavor to foods; 3, They allow the body to absorb some vitamins
Rationale: Fats add flavor and texture to foods, thereby making them more palatable to most people. People do not need to consume as little fat as possible; they need to consume the ideal fats, like monounsaturated fats, in the right proportion in the diet. Fats are necessary to promote the absorption of fat-soluble vitamins; A, D, E, and K. Fats come from many sources including plant oils, nuts, wheat germ, among others. Vegetarians can consume adequate fats without eating meat. Most fats, especially poly- and monounsaturated fats, are stable at room temperature.
Answer to Question 2
B
Feedback:
A negative nitrogen balance indicates that protein catabolism is occurring at a faster rate than protein synthesis, which occurs during starvation or the catabolic phase after injury. Proteinenergy malnutrition does not occur one day after a major surgery. Marasmus does not follow an acute event such as surgery. A neutral nitrogen balance is the state where protein intake equals protein catabolism.