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Category - NASM Fitness Nutrition Specialist Practice Test

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What is the definition of glycogen?
  1. One of the three primary classes of foods and a source of energy in the body
  2. A simple sugar manufactured by the body from carbohydrates and fat
  3. Formation of glucose from non-carbohydrate sources that can be used for energy
  4. Complex carbohydrate molecule that stores carbohydrates in the liver and muscle cells
Explanation
Answer - D - Glycogen is a complex carbohydrate molecule that stores carbohydrates in the liver and muscle cells. It is essentially a string of glucose molecules that can quickly be broken down into glucose. When energy is needed from carbohydrates, glycogen is transformed into glucose for use by the muscle cells.
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