Multiple choice

Which biomolecule is the main source of energy?

  1. Carbohydrate

  2. Protein

  3. Lipid

  4. Nucleic Acid

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbohydrates, specifically glucose, are the primary and most readily available source of energy for cellular processes. While lipids store more energy per gram, carbohydrates are the main fuel source.