Asked Dec 12, 2019

If    the ratio    of someone's   carbon dioxide   production to oxygen    consumption (CO2 / O2)    decreases, what does this   tell you about his/her metabolism?


Expert Answer

Step 1

The ratio to amount of carbon dioxide produced in the body to amount of oxygen consumed or used by the body is known as respiratory exchange ratio (RER). Determination of this ratio is used for estimating respiratory quotient (RQ), which is used for the determination of which fuel is metabolized in the body to meet energy requirements.

Step 2

Decrease in the ratio of carbon dioxide production to oxygen indicates low RER. Carbohydrates and lipids are the common organic elements that are metabolized to yield energy. Generally, high RER indicates that carbohydrates are predominantly metabolized whereas low RER indicates that metabolism is switch...

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Metabolism and Bioenergetics

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