(a(i))[1]
State which class of indicators DCPIP is part of.
(a(ii))[1]
Describe the colour change seen in DCPIP during experiments used to determine the rate of respiration.
(b(i))[2]
State two variables that must be maintained at the same value in this experiment.
(b(ii))[3]
Explain the pattern of results shown in Fig. 6.1.