Question

To determine if cells are actively carrying out cellular respiration, scientists design an investigation that measures the amount of various compounds in a closed system over a certain period of time. Which of the following indicates that the cells are actively respiring?

Answer 1

If cells are actively respiring, you would expect an increase in the production of carbon dioxide within a closed system. Therefore, monitoring an increase in the concentration of carbon dioxide over time in the closed system would be an indicator that cells are actively carrying out cellular respiration.

Answer 2

To determine if cells are actively carrying out cellular respiration, scientists can measure the consumption of oxygen or the production of carbon dioxide. ATP formation can also indicate active respiration.

Step-by-step explanation:

In order to determine if cells are actively carrying out cellular respiration, scientists design an investigation that measures the amount of various compounds in a closed system over a certain period of time. To indicate that cells are actively respiring, scientists can measure the consumption of oxygen or the production of carbon dioxide. Additionally, they can monitor the formation of adenosine triphosphate (ATP), which is a molecule that serves as the main source of energy for cellular processes.