Question

give reason why oxygen is necessary for complete oxidation of glucose

Answer 1

Aerobic oxidation is the process by which the metabolism of sugars and fatty acids take place in the presence of oxygen to produce energy giving ATP. ... Thus, oxygen is necessary for the complete oxidation of glucose because it is an aerobic reaction and because oxygen is the oxidizing agent.

Answer 2

Answer:

• All living organism requires energy to live and to perform any useful functions.  
• This energy they get from food they eat. Energy is released when food contains nutrients, let’s say carbohydrate (glucose).  
• Energy released in the cells when oxidation of glucose occurs which means the carbohydrates which we eat converted into simpler substances with the help of oxygen.  
• For complete oxidation of glucose (i.e the breakdown into simpler substances) oxygen is necessary.