The purple color in the shaded colonies are mainly due to the phycobilin pigment of the algae, meaning the variation of exposure in light changes the colors of these colonies.
12.
The chloroplasts of " Bangia ", like others in the division Rhodophyta, contain chlorophyll a and sometimes chlorophyll d, as well as accessory pigments such as phycobilin pigments and xanthophylls.
13.
Chloroplasts found in green plants species ranging from sea lettuce to evergreens and flowers that contain chlorophyll " b " as well as among the red algae and glaucophytes, marine species that contain phycobilins.
14.
Organisms growing in shallow waters tend to contain phycobilins that can capture yellow / red light, while those at greater depth often contain more of the phycobilins that can capture green light, which is relatively more abundant there.
15.
Organisms growing in shallow waters tend to contain phycobilins that can capture yellow / red light, while those at greater depth often contain more of the phycobilins that can capture green light, which is relatively more abundant there.
16.
Phycobilins are a third group of pigments found in cyanobacteria, and glaucophyte, red algal, and Cryptophyte chloroplasts and some cyanobacteria don't have their phycobilin pigments organized into phycobilisomes, and keep them in their thylakoid space instead.
17.
Phycobilins are a third group of pigments found in cyanobacteria, and glaucophyte, red algal, and Cryptophyte chloroplasts and some cyanobacteria don't have their phycobilin pigments organized into phycobilisomes, and keep them in their thylakoid space instead.
18.
Prochlorophyta lack red and blue phycobilin pigments and have stacked thylakoids, making them distinctly different from Cyanobacteria ( or Cyanophyta ), but some authors consider them as part of the Cyanobacteria, as the group "'Prochlorales " '.
