What is the primary focus of biochemistry?

The primary focus of biochemistry is the properties of molecules in relation to living organisms. This field studies the chemical processes and substances that occur within biological systems. By understanding how biomolecules like proteins, nucleic acids, carbohydrates, and lipids interact and function, biochemists can elucidate the molecular mechanisms that underpin life. This knowledge is crucial for various applications, including medicine, genetics, and biotechnology.

In contrast, other choices steer away from the core of biochemistry. For instance, chemical reactions in non-living systems focus more on general chemistry rather than the specific biochemical processes that define living organisms. The structure of inorganic compounds pertains to the study of non-carbon-containing compounds and does not encompass the biological aspect central to biochemistry. Lastly, chemical engineering applications involve the design and optimization of processes for chemical production, which, while related to chemistry, does not specifically address the unique biochemical interactions and processes found in living entities.