In some cyanobacteria, there are membranous extensions into cytoplasm called _A_ which contains _B_.
A- Chromatophores ; B-Photosynthetic pigments.
A- Lamellosome ; B- photosynthetic pigments.
A-Mesosome ; B- Respiratory enzymes.
A- Chromatophores ; B- Non- photosynthetic pigments.
Chromatophores are the membranous extensions of cell membrane seen in cyanobacteria which contain photosynthetic pigments.