Difference between Monera and Protista

Life forms on earth are categorized under Five divisions based on nutrition, cell type, the complexity of the structure, energy obtained by them, and much more. The five kingdoms are – Monera, Protists, Fungi, Plantae and Animalia. Though Kingdoms Protista and Monera both comprise of entities that are single-celled, yet they are distinct from each other. Discover the differences between monera and Protista.


  • Unicellular entities with a cellular composition of a prokaryote
  • Metabolically diverse using several substrates as carbon and energy sources, play a role in carbon and nitrogen cycles
  • Their cell wall is rigid, made of peptidoglycan
  • They are environmental decomposers and mineralizers exhibiting different modes of nutrition.


  • Unicellular entities with a cellular composition of a eukaryote
  • Consists of nearly 16 phyla, most of their members are aquatic entities
  • Nucleus has several strands of DNA
  • They have mitochondria for cellular respiration and few possess chloroplast for photosynthesis

Difference between Monera and Protista

The table below depicts the important differences between Monerans and Protists

Characteristics Monera Protista
Level of cells
  • Unicellular
  • Prokaryotic cellular structure
  • Unicellular
  • eukaryotic cellular structure
Organelles of the cells Absent Presence of well-membrane bound organelles, hence well defined
Complexity of the structure Simple Complex
Size Smaller Relatively larger
Nutrition mode Autotrophic/heterotrophic Parasitic/holozoic/photosynthetic
Reproduction – mode Asexual – budding, binary fission Asexual or sexual
Cell wall Present Present, well developed
Chloroplast/Mitochondria Absent Chloroplast present for photosynthesis. Mitochondria present for cellular respiration
Nucleus True nucleus absent Present. Nuclei bound with nuclear membrane
Flagella and cilia Absent Present. Used for locomotion
Habitat Found almost everywhere Some found in aquatic areas, some in shady places, moist lands so on
Classification Bacteria, Archaebacteria, Cyanobacteria Algae, Molds, Diatoms, Protozoans
Example Bacillus, Mycobacteria, Sphorobacter Euglena, red algae, green algae

These were some vital differences between the two kingdoms – Kingdom Monera and Kingdom Protista. Explore about each in detail, the entities, behaviour, salient characteristics and much more at BYJU’S.

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