Which of These Statements Pertains to the Energy Equivalent of Oxygen

Question

Which of these statements pertains to the energy equivalent of oxygen
A)the number of calories contained in every litre of oxygen consumed
B)the value that equates how much energy is liberated from food for every litre of oxygen consumed
C)the oxygen consumption required for the processing and storage of ingested foodstuff
D)the energy required to raise 1 g of H₂Oa. 1°C

Accepted Answer

The energy equivalent of oxygen refers to the value that equates how much energy is liberated from food for every litre of oxygen consumed. It is commonly known as the respiratory quotient and is used to calculate the energy expenditure of an individual. Option A is incorrect because the energy equivalent of oxygen is not related to the number of calories contained in every litre of oxygen consumed. Option C is also incorrect because it refers to the oxygen consumption required for the processing and storage of ingested foodstuff, which is not the same as the energy equivalent of oxygen. Option D is also incorrect because it refers to the energy required to raise 1 g of H₂O by 1°C, which is the definition of a calorie.