Final answer:
Carbohydrates in forms such as starch contained in pasta and breads serve as quick energy sources, breaking down into glucose for immediate cellular use.
Step-by-step explanation:
The micromolecule that would be considered as a quick energy source found in pasta and breads is a carbohydrate. Pasta and bread are rich in starches, which are polysaccharides that get broken down into glucose during digestion. Glucose is a simple sugar that provides immediate energy for cells and is utilized in the production of ATP, the energy currency of the cell. The body can also convert excess glucose into glycogen for storage in the liver and muscles, or into fat for long-term energy storage.