A polysaccharide that is used for storing energy in human muscle and liver cells is __________.

• A. glucose
• B. starch
• C. chitin
• D. cellulose
• E. glycogen

Answer: (E)

Verified step by step guidance

1. Understand the role of polysaccharides in biological systems. Polysaccharides are long chains of monosaccharide units and serve various functions such as energy storage and structural support.
2. Identify the function of each option provided: glucose, starch, chitin, cellulose, and glycogen. Glucose is a simple sugar, starch is a plant energy storage polysaccharide, chitin is a structural polysaccharide in fungi and arthropods, and cellulose is a structural polysaccharide in plants.
3. Recognize that glycogen is the polysaccharide specifically used for energy storage in animals, including humans. It is stored in the liver and muscle cells.
4. Recall that glycogen is similar to starch but is more highly branched, which allows for rapid release of glucose when energy is needed by the body.
5. Conclude that the correct answer is glycogen, as it is the polysaccharide used for storing energy in human muscle and liver cells.