Question

what is cellular metabolism?
a series of reactions, occurring in the presence of oxygen,
by which glucose is broken down to create atp
a series of reactions, occurring in the presence of sunlight,
that creates glucose, or sugar
the set of chemical reactions that occur in living
organisms in order to maintain life
a chemical process, occurring without oxygen, by which
glucose is broken down to create atp

Explanation:

Cellular metabolism encompasses all the chemical reactions in living organisms that are essential for maintaining life. It includes both catabolic (breaking down molecules) and anabolic (building up molecules) processes. The first option describes aerobic respiration (a part of metabolism but not the whole concept). The second option is photosynthesis. The fourth option is anaerobic respiration (again, a part but not the full concept). The third option correctly defines cellular metabolism as the set of chemical reactions in living organisms to maintain life.

Answer:

The set of chemical reactions that occur in living organisms in order to maintain life.