During aerobic respiration, if proteins are used as the respiratory substrate and the volume of oxygen consumed is 150 mL , what would be the expected volume of CO ₂ released?

Step-by-step solution

The respiratory quotient (RQ) is the ratio of the volume of CO ₂ evolved to the volume of O ₂ consumed during respiration. RQ = Volume of CO ₂ evolved Volume of O ₂ consumed According to NCERT, when proteins are used as respiratory substrates, the RQ is approximately 0.9 . Given: Volume of O ₂ consumed = 150 mL Substituting the known values into the formula: 0.9 = Volume of CO ₂ 150 mL Volume of CO ₂ = 0.9 150 mL = 135 mL Thus, the expected volume of CO ₂ released is 135 mL . Mistakenly using the RQ of carbohydrate