Question

According to the Law of Conservation of Mass, there need to be the samenumber of atoms on each side of a chemical equation. Photosynthesis andcellular respiration have been described as opposite reactions. In order toshow the Law of Conservation of Mass, which of the following must be truefor these two reactions?F. Photosynthesis uses more hydrogen atoms, but both reactions use thesame number of carbon atoms.G. Photosynthesis uses more carbon atoms and cellular respiration hasfewer oxygen atoms.H. Photosynthesis uses the same number of oxygen atoms as cellularrespiration, but cellular respiration uses more hydrogen.1. Photosynthesis and cellular respiration each use the same number ofcarbon, hydrogen, and oxygen atoms.

Answer 1

Note that Photosynthesis is represented by the following chemical formula:

On the other hand, Cellular respiration or aerobic respiration is represented by the following chemical formula:

According to the above information, note that Photosynthesis and cellular respiration each use the same number of carbon, hydrogen, and oxygen atoms. So that, we can conclude that the correct answer is the last option:

Photosynthesis and cellular respiration each use the same number of carbon, hydrogen, and oxygen atoms.