Question

________ are the body's primary and most immediate source of energy. fats carbohydrates proteins

Answer 1

Hello There!

Carbohydrates are the body's primary and most immediate source of energy. 

This is because carbohydrates are broken down by an enzyme called carbohydrase into glucose. Glucose is the immediate energy source.

Hope This Helps You!
Good Luck :) 

- Hannah ❤