Q: During cellular respiration, carbons from the glucose molecule are changed back into what gas?


Read this paragraph and choose the correct option from the provided answers:

In biological systems, matter is continuously changing states as well. For example, carbon in the form of the gas carbon dioxide is changed into glucose, a solid. This change, of course, occurs during photosynthesis. During cellular respiration, carbons from the glucose molecule are changed back into the carbon dioxide gas.

 Choices:

- deformation dioxide

- carbon monoxide

- liquid dioxide

- carbon dioxide


A:
carbon dioxide