Question

A student made the following diagram to represent cellular respiration.

The title of the diagram is Cellular Respiration. An oval labeled Cell has five arrows around it. The arrows labeled Oxygen, Glucose, and Water point towards the cell. The other two arrows labeled Energy and Carbon dioxide point away from the cell.

Why is this diagram incorrect?

Water is not used up during this process.
Glucose is not used during this process.
The arrow for oxygen should point in the opposite direction.
The arrow for carbon dioxide should point in the opposite direction.

Answer 1

The correct answer is A, Water is not used up during this process. This is because when cellular respiration occurs oxygen and glucose combine. When this takes place water is left behind when carbon is separated from glucose. Because water is being left behind it is not being used up in this process.