A) specialised granules responsible for colouration of cells.
B) structures responsible for organising the shape of the organism.
C) inclusion bodies lying free inside the cells for carrying out various metabolic activities.
D) internal membrane system which becomes extensive and complex in photosynthetic bacteria.
Correct Answer: D
Solution :
[d] In some prokaryotes like cyanobacteria, there are membranous extensions into the cytoplasm called chromatophores which contain pigments.
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