What is the cell wall of Thallophyta made up of?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The cell wall composition in Thallophyta varies between groups:
- Algae (photosynthetic thallophytes): Cell walls are primarily made of cellulose, similar to higher plants, with some species incorporating additional polysaccharides like pectin, algin (in brown algae), or agar (in red algae)
- Fungi (non-photosynthetic thallophytes): Cell walls are composed primarily of chitin, a nitrogen-containing polysaccharide also found in arthropod exoskeletons, making them fundamentally different from plant cell walls
This compositional difference is one reason why fungi are now classified in their own kingdom (Kingdom Fungi) separate from plants, despite historical grouping in Thallophyta.
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