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Respiratory Quotient

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Respiratory Quotient

Question

The table below shows the oxygen consumption and carbon dioxide released at rest by a number of animals under certain conditions.
FORM 4 Biology
a)Complete the table in the last column showing respiratory quotient.

Answer

a)
Mouse - 1.0
Dog - 0.7
Sheep - 0.7
Horse - 1.0

What is Respiratory Quotient?

The respiratory quotient (RQ), also known as the respiratory ratio, is a numerical value that represents the ratio of carbon dioxide (CO2) produced to oxygen (O2) consumed during a specific metabolic process, such as cellular respiration. It provides insights into the type of substrate being utilized for energy production within an organism's cells.

The formula for calculating the respiratory quotient is:
RQ = CO2 produced / O2 consumed