(a)[3]
A mitochondrion has DNA and ribosomes and is the organelle where aerobic respiration occurs. Suggest the roles of the DNA and ribosomes in a mitochondrion.
(b)[4]
Oxidative phosphorylation occurs in the mitochondrion. The stages of oxidative phosphorylation are listed below, but they are not in the right sequence. Complete Table 8.1 to show the correct sequence of the stages.
(c)[1]
ATP may be converted to ADP and inorganic phosphate by the enzyme ATPase. State the type of reaction involved.
(d)[5]
Some parasitic worms, including tapeworms, live in a mammalian gut where oxygen is absent. Suggest how a tapeworm produces ATP in this environment.