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Q.
In respiration, more than one $R.Q. $ value results from the use of
AMUAMU 2014Respiration in Plants
Solution:
Respiratory Quotients $(R Q)$ is the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed in respiration over a period of time. Its value is one, zero, more than $1$ or less than $0$ .
$RQ$ slightly more than unity is found when organic acids are broken down as respiratory substrates under aerobic conditions.
For example, $C _{6} H _{6} O _{5}+3 O _{2} \rightarrow 4 CO _{3}+3 H _{2} O$
(Malic acid) $R Q=4 CO _{2} / 3 O _{2}$ or $1.3$