This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
The ratio of carbon dioxide produced to oxygen consumed is known as 
Select and explain. 
A. Basal metabolic rate, B. Respiratory quotient, C. Specific dynamic action, D. Paial pressure of carbon dioxide
B: Respiratory quotient
Answer: B: Respiratory quotient 
Explanation: Respiratoryquotient (RQ) is the ratio of carbon dioxide produced/oxygen consumed RQ Glucose 1.00 Protein 0.81 Fat 0.71 Alcohol 0.66 Ref : Biochemistry by U. Satyanarayana 3rd edition Pgno : 503