Tissues in Action
Class 9 · Science
4 ideas in Class 9 Science, explained in plain words, with games and quizzes to practise.
Plant Growth and Meristematic Tissues
Part of: Plant Tissues
Meristematic tissues contain cells that keep dividing. Apical meristems at root and stem tips add length, lateral meristems increase girth, and intercalary meristems near nodes help some plants regrow.
Why it matters. The location of each growth tissue explains why cutting a tip or grazing grass affects different kinds of growth.
Try it in two minutes
- Find a plant stem tip and a node.
- Predict where new length or branches could form.
- Compare a young stem with a thicker older stem.
Try at home. Observe how grass regrows after trimming and identify which growth pattern is involved.
Permanent Plant Tissues and Transport
Part of: Plant Tissues
Plant tissues specialise in protection, support, storage and transport. Xylem carries water and minerals; phloem carries food. Epidermis protects, while parenchyma, collenchyma and sclerenchyma differ in support and flexibility.
Why it matters. Matching structure to role explains how plants stay upright, conserve water and move materials between roots and leaves.
Try it in two minutes
- Look at a leaf and identify its outer surface.
- Trace how water moves from roots toward leaves.
- Trace how food made in leaves reaches other parts.
Try at home. Draw a plant and use arrows to show water movement and food movement.
Animal Tissues and Their Functions
Part of: Animal Tissues
Animal tissues include coverings and linings, supportive connective tissues, muscles for movement, and nervous tissue for signals. Their structures match their jobs, such as thin lining cells for exchange or fibres for contraction.
Why it matters. Tissue specialisation explains how body parts protect, connect, move and communicate.
Try it in two minutes
- Blink, flex a finger and notice a sensation.
- Name which kind of tissue supports each action.
- Connect the tissue’s shape or arrangement with its job.
Try at home. Create a four-column chart of tissue type, structure, location and function.
Musculoskeletal System and Joints
Part of: Animal Tissues
Muscles pull on bones through tendons. Joints allow bones to move in particular ways, while ligaments stabilise them and cartilage cushions bone ends. Different joint shapes allow different ranges of movement.
Why it matters. This explains why shoulders move in many directions while elbows mainly bend and straighten.
Try it in two minutes
- Bend your elbow and then circle your shoulder.
- Compare the range of each movement.
- Name the joint type that allows each pattern.
Try at home. Draw the arm skeleton and label a hinge joint, a ball-and-socket joint and a tendon.
What your child will practise
- Animal Tissues and Their Functions: Candy Quick Fire (Quick Fire)
- Animal Tissues and Their Functions: Mission Control Quest (Collect the Answer)
- Musculoskeletal System and Joints: Lab Explorer Quest (Match It Up)
- Permanent Plant Tissues and Transport: Space Quick Fire (Quick Fire)
- Plant Growth and Meristematic Tissues: Desert Puzzle (Clue Puzzle)
- Quiz: Animal Tissues and Their Functions (8 questions)
- Quiz: Musculoskeletal System and Joints (8 questions)
- Quiz: Permanent Plant Tissues and Transport (8 questions)
- Quiz: Plant Growth and Meristematic Tissues (8 questions)