If R.Q. is 0.6 in a respiratory metabolism, it would mean that
A
Carbohydrates are used as respiratory substrate
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B
Organic acids are used as respiratory substrate
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C
The oxidation of the respiratory substrate consumed more oxygen than the amount of CO2 released
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D
All of the above
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Solution
The correct option is D The oxidation of the respiratory substrate consumed more oxygen than the amount of CO2 released If R.Q.is 0.6 in respiratory metabolism, it would mean that the oxidation of the respiratory substrate consumed more oxygen than the amount of CO2 released.
The respiratory quotient (RQ) is the ratio:
RQ = CO2 eliminated / O2 consumed
From the formula, it is clearly understood that higher the amount of CO2 released, higher the value of R.Q., higher the amount of O2 consumed, lesser the value of R.Q.