What would be the problem if cellular respiration took place in just one step

It is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. What would be the problem if cellular respiration took place in just one step? all of the energy would be released at once and most of it would be lost in the form of light and heat.

Ifound this on google “here are some features of the alveoli that allow this: they give the lungs a really big surface area. they have moist, thin walls (just one cell thick) they have a lot of tiny blood vessels called capillaries.for more information go to the website below › bitesize › guidesi hope this you for what your looking for. can you plz mark me brainliest?