Home Biology The Living World NCERT Which one is unicellular, photosynthetic euk…
Biology The Living World NCERT Single Correct MCQ
Published on: August 11, 2026

Which one is unicellular, photosynthetic eukaryote lacks cell wall?

A
Mycoplasma
B
Amoeba
C
Euglena
D
Slime mould

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Text Solution

Verified by Experts
The correct answer is:
C

Euglena is a unicellular eukaryotic organism belonging to the kingdom Protista. It is photosynthetic in the presence of sunlight (autotrophic) but can act as a heterotroph in the dark. Crucially, it lacks a cellulose cell wall. Instead, it has a flexible, protein-rich outer layer called a pellicle that allows it to change shape.

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