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Plant Kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYPlant Kingdom2 Marks
Question
Why has our understanding of plant kingdom changed over time?
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Answer

Our understanding of plant kingdom has changed over time because of the following reasons:
  1. In the two-kingdom classification, plant kingdom included bacteria, cyanobacteria (blue-green algae), fungi, algae, bryophytes, pteridophytes, gymnosperms and angiosperms.
  2. Later bacteria and cyanobacteria are removed to kingdom Monera, as they are prokaryotes.
  3. Fungi are heterotrophs, with a cell wall of chitin; so they are also removed to kingdom Fungi.
  4. Now the plant kingdom includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms.

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