In cellular respiration, what is the relationship between the energy content of the reactants (glucose and O₂) and products (CO₂ and H₂O)? A) The energy content of the reactants (glucose and O₂) must equal the energy content of the products (CO₂ and H₂O). B) The energy content of the reactants (glucose and O₂) must be greater than the energy content of the products (CO₂ and H₂O). C) The energy content of the reactants (glucose and O₂) must be less than the energy content of the products (CO₂ and H₂O). D) There is no relationship between the energy content of the reactants (glucose and O₂) and the energy content of the products (CO₂ and H₂O). E) There is no relationship between O₂ and H₂O, but the energy content of glucose is less than that of CO₂.

Question

Quizplus · Accepted Answer

In cellular respiration, the energy content of the reactants (glucose and O₂) is greater than the energy content of the products (CO₂ and H₂O) because some of the energy is released as heat. This is known as the "heat of combustion" and is calculated as the difference between the energy content of the reactants and the products. Therefore, B is the correct choice.

In Cellular Respiration, What Is the Relationship Between the Energy