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Question
The respiratory quotient (R.Q) of some of the compounds are 4, 1 and 0.7. These compounds are identified respectively as
The respiratory quotient (R.Q) of some of the compounds are 4, 1 and 0.7. These compounds are identified respectively as
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Solution
The correct option is B Oxalic acid, carbohydrate and tripalmitin
The respiratory quotient (RQ) is the ratio of CO2 produced to O2 consumed, while food is being metabolized.
RQ = CO2 eliminated / O2 consumed
The respiratory quotient for carbohydrate metabolism can be demonstrated by the chemical equation for oxidation of glucose:
C6H12O6 + 6 O2 ---> 6 CO2+ 6 H2O
RQ = 6 CO2 / 6 O2 = 1
The chemical composition of fats differs from that of carbohydrates in that fats contain considerably fewer oxygen atoms in proportion to atoms of carbon and hydrogen. So, during fat oxidation CO2 produced is less than O2 used, giving R.Q less than one.
When organic acids are broken down as respiratory substrates under aerobic conditions the RQ is more than one. Organic acids contain more oxygen than carbohydrates and therefore require less oxygen for their oxidation. R.Q of oxalic acid is 4.
The respiratory quotient (RQ) is the ratio of CO2 produced to O2 consumed, while food is being metabolized.
RQ = CO2 eliminated / O2 consumed
The respiratory quotient for carbohydrate metabolism can be demonstrated by the chemical equation for oxidation of glucose:
C6H12O6 + 6 O2 ---> 6 CO2+ 6 H2O
RQ = 6 CO2 / 6 O2 = 1
The chemical composition of fats differs from that of carbohydrates in that fats contain considerably fewer oxygen atoms in proportion to atoms of carbon and hydrogen. So, during fat oxidation CO2 produced is less than O2 used, giving R.Q less than one.
When organic acids are broken down as respiratory substrates under aerobic conditions the RQ is more than one. Organic acids contain more oxygen than carbohydrates and therefore require less oxygen for their oxidation. R.Q of oxalic acid is 4.
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