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Cell the Unit of Life question

2025 · Q71
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Cell the Unit of Life question

2025 · Q71

NEETBiologyCell the Unit of LifeMCQ+4 / −1

A specialised membranous structure in a prokaryotic cell which helps in cell well wall formation, DNA replication and respiration is

  1. A
    Cristae
  2. B
    Endoplasmic Reticulum
  3. C
    Mesosome
  4. D
    Chromatophores
View written solutionFree

Correct answer: C

The correct answer is Mesosome (Option C).

Key points about mesosomes in prokaryotes:

They are infoldings of the plasma membrane.

They house enzymes and machinery for:

• Cell-wall synthesis

• DNA replication and segregation

• Respiratory processes (electron transport)

No other prokaryotic structure (cristae, ER or chromatophores) performs all three functions together.

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