Plant Kingdom — Chapter Summary
CBSE · Class 11 · Biology
Summary of Plant Kingdom for CBSE Class 11 Biology. Key concepts: Algae are chlorophyll, Green algae have chlorophyll a and Brown algae are mainly marine.
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Overview
Plant kingdom includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms. It shows a gradual increase in complexity from simple thalloid forms to highly organized seed-bearing flowering plants. Classification of plants depends on body structure, habitat, vascular tissues, reproductive fe
Key Concepts
Algae are chlorophyll
Algae are chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic organisms. They are classified into Chlorophyceae, Phaeophyceae and R
Green algae have chlorophyll a
Green algae have chlorophyll a and b, and may be unicellular, colonial or filamentous. Examples include Volvox, Ulothrix and Spirogyra. Ulothrix shows
Brown algae are mainly marine
Brown algae are mainly marine and contain chlorophyll a, c and fucoxanthin. They store food as laminarin or mannitol. Their reproductive pattern may b
Red algae contain phycoerythrin and
Red algae contain phycoerythrin and are mostly marine. They store food as floridean starch, which is similar to amylopectin and glycogen in structure.
Bryophytes are amphibians of the plant
Bryophytes are amphibians of the plant kingdom because they live on land but need water for sexual reproduction. Their main plant body is haploid and
Learning Objectives
- Understand the major groups of the plant kingdom and their basic features.
- Classify algae into Chlorophyceae, Phaeophyceae and Rhodophyceae.
- Describe the life cycle, structure and importance of bryophytes.
- Explain the main features of pteridophytes and their evolutionary importance.
- Identify the special features of gymnosperms and angiosperms.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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