Smallest living cells -

Biology Biological Classification All Topic Question For Revision Test Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Cannot survive without oxygen

Have cell wall

Are pathogenic both to plants and animals

Possess dsDNA which is linear

Text Solution

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The correct answer is:

Smallest Living Cells: Mycoplasma (or PPLO - Pleuropneumonia-like organisms) are recognized as the smallest known living cells.

Pathogenicity: Mycoplasma are pathogenic to both plants (e.g., little leaf of brinjal) and animals (e.g., pleuropneumonia).

Cell Wall: Mycoplasma specifically lack a cell wall.

Oxygen: They are generally facultative anaerobes, meaning they can survive without oxygen.

DNA: Their genetic material is circular, not linear.

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