Biological Classification

Five Kingdom classification

Classification system proposed by R.H. Whittaker dividing organisms into Monera, Protista, Fungi, Plantae, and Animalia based on cell type, cell wall presence, nuclear membrane, body organization, and mode of nutrition.

Monera

Kingdom consisting of prokaryotic organisms with cells having a cell wall made of polysaccharides and amino acids, lacking a nuclear membrane, showing cellular body organization, and obtaining nutrition through autotrophic or heterotrophic means.

Protista

Kingdom comprising eukaryotic organisms with some having a cell wall, a nuclear membrane present, showing cellular body organization, and obtaining nutrition through heterotrophic means like parasitism or saprophytism.

Fungi

Kingdom of eukaryotic organisms with a chitinous cell wall, a nuclear membrane, multicellular body organization with loose tissues, and obtaining nutrition through heterotrophic means like saprophytism.

Plantae

Kingdom of eukaryotic organisms with a cellulose cell wall, a nuclear membrane, tissue and organ body organization, and obtaining nutrition through autotrophic photosynthesis.

Animalia

Kingdom of eukaryotic organisms lacking a cell wall, having a nuclear membrane, body organization with tissues, organs, and organ systems, and obtaining nutrition through heterotrophic means like holozoic feeding or saprophytism.