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NUTR 251 Exam 3 Study Guide Penn State

A study guide for Exam 3 covering key topics in nutrition and health sciences.

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NUTR 251 EXAM3Study Guide Penn StateNUTR 251 EXAM 3 Study Guide Penn StateHow many Calories (kcals) are equivalent to one pound ofadipose tissue (fat tissue)?:3500 kcals = 1 pound body weightWhat does a bomb calorimeter measure? Briefly describe howit works.:-Bombcalorimeter measures how much energy/how manycalories there are in a food-How it works: When food is burned, energy is released asheat, heat is captured in water, and the change in watertemperature is measured to determine the energy content ofthe foodThe heat generated in a bomb calorimeter for protein is 5.6kcal/g, yet on a food label it tells me that protein is 4kcal/gram. Why are these values different?:The values are different because the food label refers tophysiological fuel value. The human body is not as efficient asbomb calorimeter so we subtract 1.6 cal per gram. This isbecause we don't burn nitrogen and are accounting fordigestibility.*List the physiological fuel values for carbohydrate, protein,alcohol and fat*:-Carb: 4-Protein: 4-Alcohol: 7

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Document Details

University
Pennsylvania State University
Course
NUTR 251
Subject
Nutrition

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