The most important metabolic fuel molecule in the body is

Question

Quizplus · Accepted Answer

Glucose is the primary source of energy for the body's cells and is the preferred fuel molecule for the brain and nervous system. Starch and sucrose are sources of glucose, but they must be broken down into glucose before they can be used as fuel. Protein can be used as a source of energy, but it is not the body's primary choice and is only used when glucose and fat reserves are depleted. Vitamin B₁₂ is not a metabolic fuel molecule.

The Most Important Metabolic Fuel Molecule in the Body Is