Biology – Plantae Kingdom – General Science Notes – For W.B.C.S Examination.

জীববিজ্ঞান – প্লান্টে কিংডম – সাধারণ বিজ্ঞান নোট – WBCS পরীক্ষার জন্য।

Introduction

  • Plantae kingdom includes all sorts of plants belonging to multicellular eukaryotes.Continue Reading Biology – Plantae Kingdom – General Science Notes – For W.B.C.S Examination.
  • These plants are autotrophs and they use chlorophyll for the photosynthesis.

Classification of Plantae Kingdom

  • Based on distinct body structure, components, etc. plantae kingdom is further classified as −
    • Thallophyta
    • Bryophyta
    • Pteridophyta
    • Gymnosperms
    • Angiosperms
  • Let’s discuss each of them in brief −

Thallophyta

  • The plants of thallophyta do not have well-differentiated body design.
  • The plants in thallophyta are known as algae and they are predominantly aquatic.
  • Some of the significant examples of thallophyta are Spirogyra, Ulothrix, Cladophora, Chara, etc.

Bryophyta

  • The plants of amphibian group are categorized as bryophyta.
  • Though not distinctly developed, but the plant body can be differentiated to form stem and leaf-like structures.
  • The examples of bryophyta are moss (Funaria) and Marchantia.

Pteridophyta

  • Plants of pteridophyta have defined roots, stem, and leaves.
  • Pteridophyta plants have specialized tissue that transports water and other materials from one part to another part of the plant.
  • Examples of pteridophyta are Marsilea, ferns, and horse-tails.
  • The commonality among the thallophytes, the bryophytes, and the pteridophytes are – all of them have naked embryos, which are known as spores.
  • The reproductive organs of plants of these groups are known as ‘cryptogamae,’ which means ‘hidden reproductive organs’.

Gymnosperm

  • The plants of gymnosperm bear naked seeds.
  • These plants are normally perennial, evergreen, and woody.
  • Examples of gymnosperm are pines (such as deodar, cycas, etc.

Angiosperms

  • The plants of angiosperm bear covered seeds.
  • Plants of angiospherms are also known as flowing plants.
  • Plant embryos in seeds have a typical structures known as cotyledons, which is also called as ‘seed leaves.’

Our own publications are available at our webstore (click here).

For Guidance of WBCS (Exe.) Etc. Preliminary , Main Exam and Interview, Study Mat, Mock Test, Guided by WBCS Gr A Officers , Online and Classroom, Call 9674493673, or mail us at – mailus@wbcsmadeeasy.in
Visit our you tube channel WBCSMadeEasy™ You tube Channel
Please subscribe here to get all future updates on this post/page/category/website
"WBCS