Question

During cellular respiration, which of the following is equal to the total number of oxygen atoms in glucose and oxygen gas?
Number of oxygen atoms in water
Number of oxygen atoms in carbon dioxide
Total number of oxygen atoms in sugar and carbon dioxide
Total number of oxygen atoms in carbon dioxide and water

Answer 1

Total number of oxygen in carbon dioxide and water

Answer 2

Answer;

Total number of oxygen atoms in carbon dioxide and water

During cellular respiration,the total number of oxygen atoms in carbon dioxide and water is equal to the total number of oxygen atoms in glucose and oxygen gas.

Explanation;

• Cellular respiration is the process by which food substances such as glucose are broken down to yield energy in the form of ATP. This energy is in turn stored or used by the cells to drive cellular process such as transport.
• Cellular respiration occurs in three phases namely; glycolysis, kreb's cycle and electron transport chain.
• The process uses glucose and oxygen as the reactants to yield energy, and carbon dioxide an water as byproducts.
• The equation for the process is;

C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP