Respiration


   
 
Respiratory Quotient
If one observes the equation of respiration, the number of moles of oxygen needed is equal to the number of moles of carbon dioxide produced. This CO2:O2 ratio is called the "respiratory quotient". For carbohydrates it is 1 as can be seen below:
 
 
Different substrates give different RQ values. The more the value of RQ more is the efficiency. Some of the substrates and their RQs are given below:
 
Respiration Quotients of a Variety of Substrates
 
 
 
     
   
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