What is meant by the term “biochemical reactions” in living organisms?

The term "biochemical reactions" refers to the myriad of chemical processes that occur within living cells. These reactions are fundamental for maintaining life, as they drive essential functions such as metabolism, energy production, and the synthesis of biomolecules. Biochemical reactions include a wide variety of processes, such as enzyme-catalyzed reactions, cellular respiration, photosynthesis, and the synthesis and degradation of complex molecules.

This choice underscores the importance of these reactions in all forms of life, including both plant and animal cells, highlighting their role in cellular functions rather than restricting them to a specific category or function, such as producing waste or requiring light. The broad nature of biochemical reactions is crucial in understanding how living organisms grow, develop, and respond to their environment.