General Science • BiologyMedium
What is the respiratory quotient (RQ) for carbohydrate substrates under aerobic respiration conditions?
A. 0.7
B. 0.9
C. 1.0✓ Correct Answer
D. Infinity
💡 Solution & Explanation
The respiratory quotient for carbohydrate substrates under aerobic respiration equals 1.0 because equal volumes of carbon dioxide are released and oxygen are consumed during the oxidation process. Different substrates yield varying quotients, with fats and proteins registering lower values around 0.7 and 0.9 respectively due to higher oxygen requirements for oxidation.
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