Understanding Calories
(1) A calorie, also known as kilocalorie, is a unit of energy. This unit represents
the energy required to heat a kilogram of water on degree Celsius. While people
penerally link the term calorie with food, it is a unit of measurement that can be
applied texny substance possesaing energy. For instance, there are 8200 calories in
a litter (about one quart) of gasoline.
(2) Calories describe the potential energy in food to maintain bodily functions,
grow or repair tissue, and perform mechanical work such as exercise. Food calories
may take the form of fat, carbohydrates, or proteins. Once consumed, enzymes act
on these nutrients through metabolic processes and break them into their
perspective categories of fatty acids, glucose, and amino acids. These molecules
travel through the blood stream to specific cells where they are absorbed for
immediate use or sent on to the final stage of metabolism where they release their
stored energy through the process of oxidation.
(3) The number of calories burned during an exercise depends on various
factors including body weight and the type of exercise. For example, an individual
weighing 59 kilograms (130 pounds) would expend roughly 500 calories per hour
swimming or playing basketball. However, this same person would burn an
estimated 200 walking or playing table tennis. In order to survive and maintain body
weight, the average individual requires approximately 2000 to 2500 calories per day.
Gaining or losing weight is a simple process. Add and subtract 7,700 calories over
the course of time to gain or lose a kilogram. Nutrition has nothing to do with it. It is
all about calories.
Answer the following question in not less than 15 sentences but not more than
20 sentences. Evaluate your answer based on the given rubric.
Complete the table by writing the language used in "Understanding Calories" and using your own language, Paragraph
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