You are presented with the question "what is it when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy?" and the following answer choices: 
- A transportation fuel
 - extremely important
 - a hemisphere is tilted away from the sun
 - series of enzyme-mediated reactions
 - production of energy
 - the most widely used biofuel
 - chemical messengers
 - it helps plants in growing

Now knowing that cellular respiration is when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy and cellular respiration involves a series of enzyme-mediated reactions, choose the best answer.


 

    series of enzyme-mediated reactions     