(a(i))[1]
Using Fig. 4.1, give the wavelength at which phycoerythrin reaches maximum absorption.
(a(ii))[2]
Use the data in Fig. 4.1 to explain why phycoerythrin cannot be the only photosynthetic pigment in red algae.
(a(iii))[2]
Phycoerythrin is not the main pigment (reaction centre pigment) for photosynthesis in red algae. Suggest what role phycoerythrin plays in photosynthesis in red algae.
(b(i))[1]
State the name of a method that can be used to separate and identify photosynthetic pigments.
(b(ii))[3]
Explain how the results from this method would be used to show that phycoerythrin is present in red algae and absent from a plant with green leaves.