Q. In some prokaryotes like ____________, there are other membranous extensions in the cytoplasm called _________ which contain pigments.

 1698  279 NTA AbhyasNTA Abhyas 2020Biological Classification Report Error

Solution:

In some prokaryotes like cyanobacteria, there are other membranous extensions into the cytoplasm called chromatophores which contain pigments. Heterocyst is specialized cells present in some cyanobacteria which carries nitrogen fixation. They contain enzyme nitrogenase by which they carry out nitrogen fixation.