Question

1.where does the energy required the process of cellular respiration come from?

Answer 1

The energy from cellular respiration comes from food and air. The reactants first cellular respiration are oxygen and glucose. Glucose is a form of sugar and comes from food, and oxygen is found in air.

The main reactants or cellular respiration, as stated above, are oxygen and glucose.

During the first stage of cellular respiration, which takes place in the cytoplasm, a small amount of energy is produced when glucose is broken down into smaller particles.