Why are proteins NOT a primary source of energy in living organisms (carbohydrates are primary, lipids are energy storage...)?

Energy Production

The primary role of carbohydrates is to supply energy to all cells in the body. Many cells prefer glucose as a source of energy versus other compounds like fatty acids. Some cells, such as red blood cells, are only able to produce cellular energy from glucose.

Explanation:

energy and particles

it's d - life cycles - apex