What are biomolecules?

Biomolecules are fundamental components of living organisms and are typically defined as molecules that are either produced within cells or are released by cells. This definition encompasses a variety of substances, such as carbohydrates, proteins, lipids, and nucleic acids, which play critical roles in biological processes. By focusing on the molecular structures associated with life, option B accurately captures the essence of biomolecules as they are integral to cellular function and organization. In contrast, the other options refer to either smaller molecules that may not be biologically relevant, synthetic substances not naturally occurring in living systems, or inorganic elements that do not fit the definition of biomolecules. Understanding biomolecules is key to studying life sciences and biochemistry, as they are involved in metabolism, information storage, and structural integrity of cells and organisms.