Prokaryotic cell

• cell protoplasm can be differentiated into cytoplasm and primitive nucleus.
• cytoplasm contains photosynthetic lamellae or chromatophores which are the sites of photosynthesis.
• infoldings of cell membrane called mesosomes are found to carry on respiration.
• The mesosomes participate in energy production (respiration), DNA replication, nucleoid separation, cell division, photosynthesis, nitrogen fixation and endosporulation.
• The ribosomes lie pre- in the cytoplasm is the site for protein synthesis.
• Plastids, mitochondria, ER, Golgi bodies, peroxisomes, lysosomes etc. are not present.
• The nucleus is not true i.e. nuclear membrane is absent.
• The chromatin material lies free in the center of the cytoplasm in the form of tangled mass.
• DNA of prokaryotic cells is non- histone type & circular in nature.