Topic+4

Topic 4 Samantha L. Calories: a quantity of food capable of producing such an amount of energy ([]

 A calorie is a unit of energy; your body needs them in order to have energy. Food energy is the amount of energy in food that is available through digestion.

Eric S. real life example of Calories-in any food you eat there are Calories. We need calories for energy in everyday life.So therefore any example of a food is a real life example of Calories(food energy)

Energy is the first nutritional demand of the body. Extra calories not needed for the body’s work are stored primarily as fat. Most of the calories you burn daily are those required for the body to function.You can alter your total daily kcal needs by exercising, which increases the calories you burn.

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Our bodies "burn" the calories in the oatmeal through metabolic processes, by which enzymes break the carbohydrates into glucose and other sugars, the fats into glycerol and fatty acids and the proteins into amino acids. These molecules are then transported through the bloodstream to the cells where they are either absorbed for immediate use or are sent on to the final stage of metabolism, in which they are reacted with oxygen to release their stored energy.

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Rya S. A walnut is placed in the apparatus shown in the picture. It is then burned. The heat from the flame is used to heat a volume of water in the can. The temperature of the water is monitored throughout the experiment. Complete the following table containing data from this experiment.

1.4g || Calories / gram || 5.64 Calories/gram || 6.38 C || || || ||
 * Mass of water || 200 g || || Initial mass of the walnut || 2.65 g ||
 * Specific heat of water || 1.00 cal/g ℃ || || Final mass of the walnut || 1.25 g ||
 * Initial temperature of the water || 22.00 ℃ || || Calories / gram (burned) ||
 * Final temperature of the water || 53.90 ℃ || || Manufacturers
 * Energy Absorbed by the water (__c__alories) || 6380 c || || % Error of the experiment || 115.325% ||
 * Energy Absorbed by the water (__C__alories) ||