(a)[3]
Outline the part played by oxygen in aerobic respiration.
(b(i))[3]
Describe and explain how the energy released differs among the three respiratory substrates shown in Table 3.1.
(b(ii))[1]
Suggest why lipid metabolism produces more water than the other two substrates.
(b)
Table 3.1 presents some measurements of the energy released by different respiratory substrates and the water produced during the process.