What does the term respiratory quotient (RQ) mean?
Fig. 7.1 gives a summary of the respiration of an organic substance, A, in aerobic conditions. Complete Fig. 7.1 in the spaces provided. $\text{C}_{18}\text{H}_{32}\text{O}_2 + \ldots\ldots\ldots\ \text{O}_2 \rightarrow \ldots\ldots\ldots\ \text{CO}_2 + 16\text{H}_2\text{O}$
Calculate the RQ for substance A. Present your answer to two decimal places.
Use your calculated RQ value to identify the class of compounds that substance A is likely to belong to.
Dinitrophenol (DNP) is a molecule that can carry protons across the inner mitochondrial membrane, so protons leak out of the intermembrane space. Suggest and explain the effect of DNP on aerobic respiration in human cells.
Suggest two symptoms that people may experience after several months of exposure to DNP.