Q:

The respiratory quotient

safaTerkawi
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2022-08-09
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The respiratory quotient.

  1. Is the ratio of the volume of O2 consumed to the volume of CO2 produced.
  2. Depends essentially on the type of substrate being metabolized.
  3. Is 1.0 when glucose is the substrate metabolized.
  4. Is between 0.9 and 1.00 in the second week of fasting.
  5. For the brain is around 1.0.
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safaTerkawi
2022-08-09
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A. False It is the inverse of this ratio.

B. True The respiratory quotients for carbohydrate, fat and protein metabolism are different.

C. True C6H12+O6+6O2=6CO2+6H2O; each molecule of O2 consumed results in the pro-duction of one molecule of CO2.

D. False It approaches 0.7, the value when fat is the main substrate being metabolized.

E. True Carbohydrate is the main substrate for brain metabolism.

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