ICSE Class 9 Biology | 8. Five Kingdom Classification by Pavan | Learn Smarter
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8. Five Kingdom Classification

The Five Kingdom Classification system proposed by R.H. Whittaker in 1969 categorizes all living organisms based on their cellular structure, body organization, mode of nutrition, reproduction, and habitat. It divides organisms into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia, each exhibiting unique characteristics and nutritional modes. While this classification helps in organizing biodiversity and reflects evolutionary relationships, it has limitations, such as the exclusion of viruses and organisms displaying features of multiple kingdoms.

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Sections

  • 8

    Five Kingdom Classification

    The Five Kingdom Classification system categorizes all living organisms into five groups based on cell structure, body organization, mode of nutrition, reproduction, and habitat.

    Learning Practice

  • 8.1

    Introduction

    This section introduces the Five Kingdom Classification system proposed by R.H. Whittaker in 1969, categorizing living organisms based on various characteristics.

    Learning Practice

  • 8.2

    The Five Kingdoms

    The Five Kingdoms classification divides all living organisms into five categories based on their cellular structure, body organization, nutrition, and reproduction.

    Learning Practice

  • 8.3

    Characteristics Of Each Kingdom

    The section describes the fundamental characteristics that define each kingdom in the Five Kingdom Classification system.

    Learning Practice

  • 8.3.1

    Monera

    Monera represents the simplest and oldest organisms characterized by prokaryotic cell structure and a unique mode of reproduction.

    Learning Practice

  • 8.3.2

    Protista

    Protista includes eukaryotic, mostly unicellular organisms that can be autotrophic or heterotrophic.

    Learning Practice

  • 8.3.3

    Fungi

    Fungi are non-green, eukaryotic organisms primarily known for their role in decomposing organic matter and lacking chlorophyll.

    Learning Practice

  • 8.3.4

    Plantae

    The Plantae kingdom consists of multicellular, autotrophic organisms that can photosynthesize and have cell walls made of cellulose.

    Learning Practice

  • 8.3.5

    Animalia

    The Animalia kingdom encompasses multicellular, heterotrophic organisms that lack a cell wall and possess complex organ systems, enabling movement and consumption of organic matter.

    Learning Practice

  • 8.4

    Advantages Of Five Kingdom Classification

    The Five Kingdom Classification system offers a logical organization of biodiversity, reflecting evolutionary relationships and distinguishing between different types of organisms.

    Learning Practice

  • 8.5

    Limitations

    The limitations of the Five Kingdom classification system include the exclusion of viruses, organisms exhibiting mixed features, and insufficient consideration of molecular genetics.

    Learning Practice

References

b9-8.pdf

Class Notes

Memorization

What we have learnt

  • The Five Kingdom Classifica...
  • Each kingdom exhibits speci...
  • The classification system h...

Final Test

Revision Tests