Respuesta :
Answer:
Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen).
During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.
Explanation:

What cellular respiration does is pretty much reverse photosynthesis. In photosynthesis the necessary items are taken to create glucose for plants, whereas cellular respiration takes place when these items aren’t accessible. That causes the plant to use the glucose and oxygen to turn it into ATP (substitute energy for light), CO2, water.