The biomolecules that provide quick energy for the cell and also serve as materials to build the cell membrane are lipids.
- Carbohydrates primarily provide quick energy but are not significant for building cell membranes.
- Proteins serve various functions including structural roles and enzymes, but they are not primarily for quick energy or membrane building.
- Nucleic acids are involved in genetic information storage and transmission, not for energy or membrane structure.
Lipids, particularly phospholipids, are essential for forming the cell membrane, and they also serve as a source of energy for the cell.