Question

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

Explanation:

Cellular respiration is a metabolic process. It occurs in the presence of oxygen (aerobic respiration). The main goal is to break down glucose to produce ATP (adenosine triphosphate), which is the energy currency of the cell.

• The first option describes photosynthesis (uses sunlight to make glucose), not cellular respiration.
• The second option describes anaerobic fermentation (no oxygen), not the main cellular respiration (which is often aerobic).
• The fourth option is too broad as it could refer to all metabolic processes in living organisms, not specifically cellular respiration.

Answer:

A series of reactions, occurring in the presence of oxygen, by which glucose is broken down to create ATP.