Rooted Against Moving
Why are plant and animal tissues built so differently?
↳ How an organism lives decides what its tissues have to do.
📚 Chapter Learning Kit
Tissues in Action · Class 9 Science
English 5 topics 260 leveled MCQs 112 flashcards 4 games Free
Shared by a Veda teacher · Generated with Veda AI · Oct 2026
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How a Plant Gets Bigger
Three kinds of growth, three tissues.
Each depends on actively dividing cells, gathered into meristematic tissue.
↳ All plant growth traces back to cells that are still dividing.
The Two-Jar Onion Test
Cut one root tip, leave the other alone.
↳ A root grows only at its tip - remove that and growth stops.
Two Kinds of Permanent Tissue
Simple or complex?
↳ Count the cell types and the classification follows.
The Epidermis
What is a plant's skin?
It guards against injury, water loss, harmful microorganisms and extreme conditions.
↳ One cell thick, and covering everything.
Cutin and the Cuticle
What is the waxy coat on a leaf?
A waxy layer of cutin, called the cuticle, covers the epidermis.
↳ Desert plants carry an especially thick one.
📖 Smart notes
What you'll study, topic by topic
1
Why Tissues Differ, and How Plants Grow
Plants are rooted and make their own food, animals move and hunt for theirs, and their tissues reflect that. Plant growth comes from meristematic tissue: apical at the tips for length, lateral in a ring for girth, and in…
- Because most plants stay rooted in one spot they need to hold themselves firm and upright, and the cell wall supplies the rigidity and stren…
- An animal cell carries no rigid wall and so alters its shape readily, and that flexibility is ultimately what makes an animal body suited to…
- The two kingdoms feed in entirely different ways, so animals carry tissues for digesting food gathered from various sources while plants car…
~35 min · full explanation, examples & memory tricks in the app
2
Permanent Plant Tissues
Once plant cells stop dividing they take up fixed jobs. Epidermis protects, parenchyma stores, collenchyma bends without breaking, sclerenchyma goes hard and dies, and xylem and phloem carry water and food. Together they…
- A cross-section of a stem shows that its cells are not all alike, because groups of them have each taken on a particular job, and tissues of…
- The epidermis is the outermost layer of the plant body, a single tightly packed layer of flat rectangular cells covered by a waxy coat of cu…
- Plants of very dry places may carry an especially thick cuticle to cut the water lost as vapour through the stomata, and the cuticle also sh…
~40 min · full explanation, examples & memory tricks in the app
3
Epithelial and Connective Tissues
Epithelial tissue covers and lines the body, with five structural forms matched to exchange, protection, secretion, sensing and absorption. Connective tissue joins and supports, and what separates blood from bone is the…
- Animal cells group together in the same way plant cells do, forming tissues whose structures are matched to particular jobs, which is why on…
- Epithelial tissue covers the outside of the body as skin and lines internal organs including the mouth, lungs, blood vessels and intestine,…
- That close packing is what allows the tissue to keep germs out and hold water in, while still permitting absorption, secretion and the movem…
~40 min · full explanation, examples & memory tricks in the app
4
Muscular and Nervous Tissues
Three kinds of muscle move the body: skeletal for what you choose to do, smooth for what happens without asking, and cardiac for the heart alone. None acts on its own, because nervous tissue built from neurons carries th…
- Movements you decide on, such as running, writing or lifting something, are called voluntary and are produced by skeletal muscles, which are…
- Long cylinders of cell, the muscle fibres, are gathered into bundles to make skeletal muscle; they do not fork, each carries many nuclei rat…
- A great many movements happen automatically with no conscious control at all, among them the passage of food along the intestine and the bea…
~35 min · full explanation, examples & memory tricks in the app
5
The Musculoskeletal System, Joints and the Skeleton
Bones, muscles, joints, cartilage, tendons and ligaments work as one system under nervous control. Four kinds of joint explain why a shoulder circles, an elbow only bends, a neck turns and a skull does not move at all.
- The musculoskeletal system is built from bones, muscles, joints, cartilage, tendons and ligaments, and between them they let us stand uprigh…
- The whole system operates under the control of the nervous system, and movement happens because muscles pull on bones through the strong fle…
- An adult human skeleton accounts for roughly 12 to 15 per cent of body weight, varying with age, gender and body composition, while adult ma…
~35 min · full explanation, examples & memory tricks in the app
❓ Leveled MCQ practice
Try the smart MCQs from this kit
260 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Tissue made of actively dividing cells in a plant is called:
Beginner
A meristematic tissue
B permanent tissue
C connective tissue
D epithelial tissue
Show answer & explanation
meristematic tissue
All plant growth traces back to such cells.
Which meristem increases the length of a plant?
Beginner
A Lateral
B Intercalary
C Permanent
D Apical
Show answer & explanation
Apical
It sits at the tips of roots and shoots.
Which meristem increases the girth of a stem?
Beginner
A Apical
B Intercalary
C Lateral
D Vascular
Show answer & explanation
Lateral
Its cells form a ring and divide concentrically.
The point on a stem where branches or leaves arise is called a:
Beginner
A internode
B node
C meristem
D ring
Show answer & explanation
node
The stretch between two of them is the internode.
🃏 Flashcards
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