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Plant Kingdom

Assam Board · Class 11 · Biology

Complete topic list for Plant Kingdom in Assam Board Class 11 Biology. Key concepts, sub-topics, and what to focus on for board exams.

130 questions24 flashcards5 concepts

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4 Topics · Assam Board Class 11 Biology

Topics in Plant Kingdom

1

Classification Systems and Taxonomy

  • Whittaker's Five Kingdom system excludes fungi, bacteria, and blue-green algae from Plantae
  • Artificial classification: Based on superficial morphological characters (habit, color, leaf shape) - Example: Linnaeus system
  • Natural classification: Based on natural affinities, internal and external features - Example: Bentham and Hooker system
2

Algae - The Aquatic Autotrophs

  • Characteristics: Chlorophyll-bearing, simple, thalloid, autotrophic, largely aquatic organisms
  • Habitat: Freshwater, marine, moist stones, soils, wood; some in association with fungi (lichens) and animals
  • Size range: From colonial forms (Volvox) to massive kelps (100 meters)
3

Classes of Algae

  • Chlorophyceae (Green Algae): Chlorophyll a,b; starch storage; cellulose cell wall; fresh/marine water
  • Phaeophyceae (Brown Algae): Chlorophyll a,c + fucoxanthin; laminarin/mannitol storage; marine habitat
  • Rhodophyceae (Red Algae): Chlorophyll a,d + r-phycoerythrin; floridean starch; mostly marine
4

Bryophytes - Amphibians of Plant Kingdom

  • Called 'amphibians' because they live on land but need water for sexual reproduction
  • Habitat: Moist, shaded areas in hills; important in plant succession on bare rocks
  • Plant body: More differentiated than algae, thallus-like, attached by rhizoids

Key Concepts

Three main types existChlorophyllCalled 'amphibians of plant kingdom' asFirst terrestrial plants with vascular tissuesNaked

Frequently Asked Questions

What are the important topics in Plant Kingdom for Assam Board Class 11 Biology?
Plant Kingdom covers several key topics that are frequently asked in Assam Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Plant Kingdom — Assam Board Class 11 Biology?
Understand the core concepts first, then work through the 130 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 19 chapters — Assam Board Class 11 Biology Syllabus

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