The respiratory quotient (RQ) values for different respiratory substrates can be worked out.
Table 5.1 gives:
• the formulae for four respiratory substrates
• the number of oxygen molecules ($\text{O}_2$) required to respire each substrate fully to carbon dioxide and water.
(a)[2]
Using Table 5.1, identify the respiratory substrate with the greatest RQ and the respiratory substrate with the smallest RQ.
(b)[5]
Under anaerobic conditions, $ATP$ production in mammals and yeast involves glycolysis and fermentation. Describe the ways in which fermentation in mammals and in yeast is alike and how it differs.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The greatest is malic acid; the smallest is oleic acid” …