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Tissues in Action

CBSE · Class 9 · Science

Complete topic list for Tissues in Action in CBSE Class 9 Science. Key concepts, sub-topics, and what to focus on for board exams.

89 questions96 flashcards5 concepts

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An infographic summarizing the key postulates of Dalton's Atomic Theory, which laid the foundation for modern chemistry.
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4 Topics · CBSE Class 9 Science

Topics in Tissues in Action

1

1. Basic idea of tissues and organisation

  • A tissue is a group of similar cells working together for a specific function.
  • In multicellular organisms, division of labour increases efficiency.
  • Cells form tissues, tissues form organs, organs form organ systems, and organ systems form the organism.
2

2. Meristematic tissue and plant growth

  • Meristematic tissue has actively dividing cells.
  • It is responsible for plant growth in length, girth, and regrowth after cutting.
  • Apical meristem is at root and shoot tips and increases length.
3

3. Permanent tissues in plants

  • Permanent tissues are formed from meristematic tissue after differentiation.
  • Permanent tissues may be simple or complex.
  • Simple permanent tissues contain one type of cell.
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4. Conducting tissues and tissue systems in plants

  • Xylem and phloem are complex permanent tissues.
  • Xylem transports water and minerals from roots to other parts of the plant and also provides strength.
  • Xylem consists of tracheids, vessels, xylem parenchyma, and xylem fibres.

Key Concepts

Central concept: Tissues in Action

Cell organizationPlant tissuesAnimal tissuesGrowth in plantsPermanent tissuesSimple permanent tissueComplex permanent tissueProtective tissue

Frequently Asked Questions

What are the important topics in Tissues in Action for CBSE Class 9 Science?
Tissues in Action covers several key topics that are frequently asked in CBSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Tissues in Action — CBSE Class 9 Science?
Understand the core concepts first, then work through the 89 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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