Tissues is a memory chapter worth 4–5 marks; questions are ‘name the tissue’, ‘give its function’ or a diagram. Two tables cover the whole chapter.
Plant tissues
| Tissue | Features | Location / function |
|---|---|---|
| Meristematic (apical, lateral, intercalary) | Dividing cells, dense cytoplasm, no vacuole | Growth in length (apical), girth (lateral), at nodes (intercalary) |
| Parenchyma | Thin walls, living, intercellular spaces | Storage; chlorenchyma (photosynthesis), aerenchyma (buoyancy) |
| Collenchyma | Corners thickened, living | Flexibility in stems and leaf stalks |
| Sclerenchyma | Lignified, dead, no spaces | Strength (coconut husk, seed coats) |
| Xylem | Tracheids, vessels, xylem parenchyma, xylem fibres (mostly dead) | Water and mineral transport upward |
| Phloem | Sieve tubes, companion cells, phloem parenchyma, phloem fibres (living except fibres) | Food transport both ways |
| Epidermis | Single layer, cuticle, guard cells with stomata | Protection, gas exchange |
| Cork | Dead, suberin | Protection in older stems |
Animal tissues
| Tissue | Types | Function / location |
|---|---|---|
| Epithelial | Squamous (skin lining, alveoli), cuboidal (kidney tubules), columnar (intestine), ciliated (respiratory tract), glandular | Covering, absorption, secretion |
| Connective | Blood (fluid matrix), bone (Ca, P), cartilage (nose, ear), ligament (bone–bone), tendon (muscle–bone), areolar (fills spaces), adipose (fat) | Support, binding, transport |
| Muscular | Striated/skeletal (voluntary, multinucleate), smooth (involuntary, spindle), cardiac (involuntary, branched, striated) | Movement |
| Nervous | Neuron: cell body, dendrites, axon | Impulse transmission |
Board favourites
- Difference between parenchyma, collenchyma, sclerenchyma
- Difference between striated, smooth and cardiac muscle
- Why are xylem and phloem called complex tissues? (more than one cell type)
Common mistakes
- Calling xylem fully dead (xylem parenchyma is living)
- Placing ciliated epithelium in the intestine
- Mixing ligament (bone–bone) and tendon (muscle–bone)
Related: Cell: The Unit of Life.
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Frequently asked questions
Are these Tissues Class 9 Notes notes enough for the exam?
They cover every formula, definition and question type that appears in school and board papers for this chapter. Use them with the NCERT examples, exercise questions and the last five years' papers to be fully prepared.
How should I revise Tissues Class 9 Notes?
Revise the notes after 1 day, 7 days and 30 days. Solve five questions each time instead of only reading, and keep an error list of the steps you get wrong.
What if I get stuck on a tissues class 9 question?
Type or photograph the exact question on DoubtPay AI, choose your class and language, and get a step-by-step answer with a diagram. You can also ask for a hint or have your own attempt checked. Packs start at ₹9 for 15 answers.
Stuck on a question? Ask it here and get a step-by-step answer in seconds — pay only per answer, no subscription. Ask your doubt now →