Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Unit of Life: CellMedium · 45s
Which is the smallest living cell?
TopicUnit of Life: Cell
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
PPLO (Pleuro Pneumonia Like Organisms) are the smallest living cells.
Final Answer: Option B — PPLO (Mycoplasma)