Here's why:
* Easily broken down: Carbohydrates, particularly sugars like glucose, are readily broken down by cells through a process called cellular respiration. This process releases energy in the form of ATP (adenosine triphosphate), which is the primary energy currency of cells.
* Abundant: Carbohydrates are abundant in the environment and are readily available to organisms through various food sources like plants, fruits, and grains.
* Versatile: Carbohydrates also serve various other functions in the body, including structural support (cellulose in plants) and cell recognition (glycoproteins).
While fats and proteins can also be used as energy sources, carbohydrates are the primary fuel for most living organisms.
