NTR 306 Questions and Correct Answers

Energy From Food Ans 4 kcal/g - Carbs 4 kcal/g - Protein 9 kcal/g - Fat 7 kcal/g - Alcohol 2 kcal/g - Sugar Alternatives Vitamins, Minerals, and Water are not 'energy-yielding.' How nutrients become energy? Ans bonds between nutrients are broken, so energy is released. What happens to Excess energy? Ans it is stored as fat, acutely and long-term Bomb Calorimeter Ans Direct measurement: food burns, then releases heat energy. It's not exact because everyone has a different metabolism (efficiency to convert food) 1 calorie is the energy needed to... Ans raise the temperature of 1 gram of water by 1 degree Celsius Carbohydrates Ans Short-term fuel. Builds other molecules and structures in the cell. Common foods: grains, veggies, fruits, legumes, seeds, nuts, and milk products. Lipids Ans Major form of stored energy. -adipose tissue (body fat) -Energy source during rest or low-moderate exercises. Makes cell membranes and other complex molecules. Common foods: oils, animal fats, seeds, and nuts. Protein Ans 50% of cellular content. Does most cellular