Plantae


 
 
Concept Explanation
 

Plantae

This kingdom includes all plants except some algae like diatoms and members of Monera, Protista and Fungi. These multicellular eukaryotes are autotrophic and have chlorophyll pigments to synthesize food. They include red, brown and green algae, mosses, ferns, gymnosperms and flowering plants. Unlike the members of other kingdoms they have rigid cellulose cell wall. 

Plantae or Plant Kingdom:

The kingdom of plants (kingdom Plantae) is divided into two subkingdoms—Cryptogamae and Phanerogamae.

  • Cryptogams are plants which do not have seeds (seedless plants). The lower cryptogams do not have true stems, roots or leaves. They do not have vascular systems either. Higher cryptogams, however, do have vascular systems.
  • Phanerogams are higher plants which have seeds. They are also called seed plants. They have true stems, roots, leaves and vascular systems.
  • The subkingdom Cryptogamae has the three divisions Thallophyta, Bryophyta and Pteridophyta.

    And the subkingdom Phanerogamae is divided into Gymnospermae and Angiospermae. Gymnosperms and angiosperms are grouped together under Spermatophyta which includes all seed-bearing plants.

                                                      

    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    The division Gymnospermae and  Angiospermae comes under ____________ subkingdom of kingdom Plantae.

    Right Option : B
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    Question : 2

    A researcher has just discovered what she thinks is a new species. initially, all she knows is that it is eukaryotic. Further analysis reveals the organism is also multicellular and relies on other organisms for a source of carbon. kingdom (s) can now be excluded for this organisms ?          

    Right Option : D
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    Explanation
    Question : 3

    The difference between algae and protozoan is that algae are

    Right Option : C
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    Explanation
     
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