NUTR SCI 132 Study Guide - Midterm Guide: Blood Plasma, Osmosis, Blood Sugar
30 Oct 2014
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Document Summary
The body uses the energy it derives from foods or stores it for future use. Metabolism: the process of releasing energy from foods, converting substances into other substances, and preparing end products for excretion - is the sum of all biochemical reactions taking place in the body. A formula for balance (in a healthy adult) is: energy in = energy out. A calorie is the energy required to raise the temperature of 1 gram of water 1 degree in centigrade. A food calorie is actually a kilocalorie (kcal); when used for food, the c in. Water - required in the greatest quantity of all nutrients. Synthesis of body tissue, hormones, proteins, and other substances; enzymes are catalysts. Release of energy from nutrients; vitamins and minerals serve as cofactors. Nutrient density: the ratio of a food"s nutrient composition to its energy value. Anecdotal evidence is useful in generating questions that may lead to hypotheses.
