Pigment containing membranous extensions in some cyanobacteria are (a) pneumatophores (b) chromatophores (c) heterocysts (d) basal bodies.
Option B Chromatophore is a pigmented lamellar or vesicular structure that can be isolated from dis rupted photosynthetic bacteria or cyanobacteria. Their plasma membrane may be projected in folds into the cytoplasm forming lamellae that have, therefore, double unitmembrane structure. The pigments and most of the enzymes required for the lightinduced electron transport and phosphorylation processes of photosynthesis, are located in the plasma membrane and lamellae.
