The 5 Great Kingdoms of Organisms

Updated: Sep 11

FIVE KINGDOMS CLASSIFICATION

1) Kingdom Monera

Characteristics:

The organisms belonging to kingdom Monera are prokaryotes.

These organisms do not have well defined cell structures like a nucleus or cell organelles.

In some organisms a cell wall is present while in others, the cell wall is absent.

Some organisms are autotrophic [can make their own food] while some animals are heterotrophic [depend on other organisms to obtain food]

Examples: Bacteria, blue green algae (Cyanobacteria), etc

2) Kingdom Protista

Characteristics:

The organisms belonging to this Kingdom are unicellular eukaryotes.

They have a well-defined cell structure and possess necessary organelles.

Some protists are capable of locomotion by using appendages like cilia or flagella.

Like Monerans, they too show an autotrophic or heterotrophic nutrition.

• They have an asexual mode of reproduction like binary fission, spore formation, etc.

Examples: Amoeba, Paramecium, Euglena, etc

3) Kingdom Fungi

Characteristics

These organisms are eukaryotes.

They are unicellular or multi cellular organisms.

Fungi have cell walls made up of a substance called Chitin.

They are all Heterotrophs i.e. they depend on other organisms for their nutrition.

Some fungi are saprophytes. They feed on dead and decayed matter to obtain nutrition.

In some cases, they follow parasitic mode of nutrition i.e. they obtain nutrition from a living host.

Examples: Unicellular Fungi: Molds and yeast, Multi cellular fungi: Mushrooms.

4. Kingdom Plantae

 Characteristics:

These organisms are multicellular, Autotrophic eukaryotes.

All the organisms have a well-defined nucleus and membrane bound organelles.

Their cells have cell walls made up of cellulose.

They make their own food by photosynthesis as most of them contain chlorophyll.

They reproduce by vegetative propagation or by pollination and fertilization.

They are incapable of moving from one place to another.

Examples: Herbs, shrubs, trees, creepers, climbers, etc.

5) Kingdom Animalia

Characteristics:

All animals are multicellular, heterotrophic eukaryotes.

All animal cells lack a cell wall and have a well-defined nucleus and cell organelles.

Animals directly or indirectly depend on plants for their nutrition.

They mostly reproduce by the fusion of the male and the female cells (sexualreproduction).

They are motile and can locomote freely.

They have a complex body containing multiple organs and organ systems that work in tandem to perform all vital functions.

Examples: Cat, dog, humans, elephants, etc.

Blog written by : Aryaman Singh

Blog edited and Published by RTG BLOGZ™ on request by Aryaman Singh

Images provided by Aryaman Singh

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