Which Macronutrient is the Major Source of Energy for Cell

Question

Which macronutrient is the major source of energy for cell processes?
A) carbohydrates
B) proteins
C) fats
D) water

Accepted Answer

Carbohydrates are the major source of energy for cell processes. Carbohydrates are quickly broken down into glucose, which can be utilized by cells for energy through cellular respiration. While proteins and fats can also provide energy, carbohydrates are the preferred source of energy for cells.