Question

How can you calculate energy use by measuring oxygen intake?

1) the amount of energy is related to oxygen by the cellular respiration formula
2) the amount of energy is related to oxygen because food is mostly oxygen
3) the amount of energy is related to oxygen because o

Answer 1

We can calculate energy use by measuring oxygen intake, as energy consumption corresponds with oxygen use due to the oxidative digestion process, producing about 20 kJ of energy per liter of oxygen.

Step-by-step explanation:

You can calculate energy use by measuring oxygen intake because energy consumption is directly proportional to oxygen consumption during the oxidative process of digestion. When we measure the oxygen a person uses during various activities, we determine their energy use. This method is grounded in the fact that approximately 20 kJ of energy are produced for each liter of oxygen consumed, regardless of the food type.

This is a reflection of the biological process of cellular respiration, where glucose and oxygen are converted into carbon dioxide, water, and energy that is transferred to ATP (adenosine triphosphate), the energy currency of the cell.