Why does one gram of fat have more energy and calories than one gram of carbohydrates? A) Carbohydrates are smaller molecules.
B) Fat is first converted into glucose then used for energy.
C) Carbohydrates are too big to be broken down and used for energy.
D) Fats have more Carbon to Hydrogen (C-H) bonds.

B is the answer. I hope this help you

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey