What are biomolecules?

Biomolecules are essential organic molecules produced by living organisms. They encompass a wide variety of compounds that contribute to the structure, function, and regulation of the body's tissues and organs. Examples include proteins, nucleic acids (like DNA and RNA), carbohydrates, and lipids, all of which are synthesized by cells through various biochemical pathways.

These molecules perform critical roles—proteins act as enzymes, structural components, and signaling molecules; nucleic acids store and transmit genetic information; carbohydrates provide energy and structural frameworks; and lipids serve as energy reserves and compose cell membranes. Hence, the defining characteristic of biomolecules is their origin within living organisms, distinguishing them from inanimate, non-organic chemicals.

Other options do not encompass the full scope of biomolecules appropriately. Some may describe specific functions or characteristics, such as energy storage or disease prevention, but do not encompass the comprehensive nature of biomolecules found in all living beings. By understanding that biomolecules are integral components that arise from biological processes, we can appreciate their fundamental role in sustaining life.