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NCERT Solutions for Class 9th Science Chapter 3 Tissues in Action

Updated on 2026-09-08

About this chapter

A tissue is a group of cells, similar in structure, that work together on one job. Cells → tissues → organs → organ systems → organism. This division of labour is what makes a large body efficient. Plant tissues are either meristematic (still dividing) or permanent (differentiated). Apical meristem adds length at root and shoot tips, lateral meristem adds girth, intercalary meristem lets grass and hedges regrow after cutting. Permanent tissues are simple (parenchyma, collenchyma, sclerenchyma — one cell type) or complex (xylem and phloem — several cell types working as one). The epidermis, with its cuticle, root hair and stomata, is the protective tissue. Plant tissues are organised into three tissue systems — dermal, ground and vascular. Animal tissues are of four kinds — epithelial, conn

  • Chapter opener
  • .2.1 Apical meristem
  • .2.2 Lateral meristem
  • .2.4 Permanent tissues; protective and supporting tissues
  • (iii) Conducting tissues
  • Simple permanent tissues
  • Epidermis, xylem and stomata
  • .3 Animal Tissues
  • .3.2 How are various parts connected in our body?
  • Connective tissues
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Exercises

  1. Chapter opener — Think It Over Page 28
  2. .2.1 Apical meristem — Activity 3.1: Let us design experiments Page 293
  3. .2.2 Lateral meristem — In-text Questions Page 303
  4. .2.3 Intercalary meristem; characteristics of meristematic tissue — In-text Questions Page 313
  5. .2.4 Permanent tissues; protective and supporting tissues — In-text Questions Page 323
  6. (iii) Conducting tissues — In-text Questions Page 33
  7. Simple permanent tissues — Pause and Ponder Page 33
  8. Epidermis, xylem and stomata — Pause and Ponder Page 34
  9. .3 Animal Tissues — In-text Questions Page 343
  10. .3.2 How are various parts connected in our body? — Activity 3.2: Let us understand further Page 363
  11. Connective tissues — Activity 3.3: Let us perform Page 37
  12. .3.3 Can we control movement in our body? — In-text Questions Page 373
  13. .4 The Musculoskeletal System — Activity 3.4: Let us investigate Page 393
  14. .4.1 The musculoskeletal system in action — Activity 3.5: Let us observe Page 393
  15. .4.1 The musculoskeletal system in action — In-text Questions Page 393
  16. .5 Types of Joints — Pause and Ponder Page 403
  17. From one cell to an organism: Totipotency — Think as a Scientist Page 42
  18. End-of-chapter questions — Revise, Reflect, Refine Page 44
  19. Project work — The Journey Beyond Page 47
  20. Looking ahead — The Quest Continues… Page 47
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