Multiple choice

When the Respiratory Quotient (RQ) is greater than 1, it indicates

  1. only aerobic respiration is taking place

  2. only anaerobic respiration is taking place

  3. both aerobic and anaerobic respirations are taking place

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Respiratory Quotient (RQ) is the ratio of CO2 produced to O2 consumed. An RQ greater than 1 occurs when organic acids are oxidized or when anaerobic respiration (which produces CO2 without consuming O2) occurs alongside aerobic respiration.

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