Q 1. How do fats differ from carbohydrates both structurally and energetically (in the number of calories they yield)? 2. What functions do fats serve in the body? 3. What is cholesterol and what is its role in the body? 4. Would cutting out all dietary fat be an appropriate recommendation for an athlete wanting to decrease body fat? 5. What is the difference between unsaturated, saturated, and hydrogenated fatty acids?