Step 1: Understand what biomolecules are. Biomolecules are the molecules that are essential for life, including carbohydrates, proteins, lipids, and nucleic acids.
Step 2: Learn about carbohydrates. Carbohydrates are a type of biomolecule that includes sugars and starches.
Step 3: Know the function of carbohydrates. Carbohydrates are primarily used by living organisms for quick energy.
Step 4: Recognize examples of carbohydrates. Common examples include glucose (a simple sugar) and starch (a complex carbohydrate).
Step 5: Conclude that carbohydrates are the biomolecule used for quick energy.