Mesosomes & Cell Division Machinery — NEET Biology
✅ Asked in NEET 2025They also help in respiration, secretion processes, to increase the surface area of the plasma membrane and enzymatic content. In some prokaryotes like cyanobacteria, there are other membranous extensions into the cytoplasm called chromatophores which contain pigments.
Mesosomes are infoldings of the prokaryotic plasma membrane that play crucial roles in cell wall formation, DNA replication, and respiration. NTA tests whether students understand that mesosomes increase surface area for enzymatic activity and are directly involved in distributing DNA to daughter cells during division. The common mistake is confusing mesosomes with mitochondria or thinking they serve only structural functions. Remember: mesosomes are prokaryotic structures (not found in eukaryotes), they actively participate in DNA segregation and energy metabolism, and their membranous extensions enhance cellular efficiency. This is testable because it distinguishes prokaryotic cell architecture from eukaryotic compartmentalization.
A specialised membranous structure in a prokaryotic cell which helps in cell wall formation and DNA replication is: (NEET 2025)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.