   Chapter 8, Problem 5RQ

Chapter
Section
Textbook Problem

If tissue cells consume 275 mL of O2 per minute and produce 195 mL of CO2 per minute, what is the RQ?A. 0.65B. 0.7C. 0.8D. 0.96

Summary Introduction

Introduction:

Respiration is a process that involves the exchange of gases between cells and systemic capillaries. The respiratory quotient represents the ratio between the amount of carbon dioxide produced in per unit oxygen consumed. It is represented by RQ.

Explanation

Justification/ Explanation for the correct answer:

Option (b) is 0.7. The tissue cells consume 275 mL of O2 per minute and produce 195 mL of CO2 per minute. Then, the respiratory quotient (RQ) is,

Respiratory quotient(RQ)=Volume of CO2 produced per minuteVolume of O2 consumed per minute=195 CO2/minute275 O2/minute=0.70

Hence, option (b) is correct.

Explanation for the incorrect answers:

Option (a) is 0.65. The tissue cells consume 275mL of O2 per minute and produce 195mL of CO2 per minute. The respiratory quotient (RQ) is,

Respiratory quotient(RQ)=Volume of CO2 produced per minuteVolume of O2 consumed per minute=195 CO2/minute275 O2/minute=0.70

So, it is an incorrect option

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