Question 13

The plant produces O2 which is necessary for the mouse to use in cellular respiration.

In this closed environment, the plant performs photosynthesis, which results in the production of oxygen (O2). This oxygen is essential for the mouse, as it uses O2 for its cellular respiration.

A) The plant produces O2 which is necessary for the mouse to use in cellular respiration

This statement is correct because during photosynthesis, plants convert carbon dioxide (CO2) and sunlight into glucose and oxygen. The oxygen released is vital for the mouse, enabling it to carry out cellular respiration and produce energy.

B) The plant produces CO which the mouse uses in cellular respiration

This statement is incorrect. Plants do not produce carbon monoxide (CO) during photosynthesis. Instead, they produce oxygen, which is what the mouse needs for cellular respiration. Carbon monoxide is toxic and not used by living organisms for respiration.

C) The mouse produces O2 as a waste product of cellular respiration

This statement is incorrect. During cellular respiration, the mouse consumes oxygen and produces carbon dioxide (CO2) as a waste product. Oxygen is not produced by the mouse; rather, it is utilized in the process of generating energy.

D) The mouse produces CO2 which is used by the plant to begin photosynthesis

This statement is correct but incomplete in the context of the question. While it is true that the mouse produces CO2, this option does not address the relationship between the plant's oxygen production and the mouse's need for it, which is the focus of the question.

Conclusion

The correct answer is option A, as it directly highlights the essential role of oxygen produced by the plant for the mouse's cellular respiration. Options B and C are incorrect because they misrepresent the processes involved in respiration and photosynthesis. Option D, while true, does not emphasize the crucial production of oxygen that supports the mouse's survival in this closed ecosystem.