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Cellular respiration

Why is fat a good energy storage molecule in animals? How about Glycogen?

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Animals in general use fat for energy storage because fat stores 9 KCal/g of energy. Carbohydrates and proteins store only 4 KCal/g of energy.

Why Glycogen as an Energy Storage Molecule?
1. Fat cannot be as rapidly mobilized in skeletal muscle.
2. Fat cannot be ...