Tissue Class 9 Chapter 6 Question and Answer provides clear solutions for students. It helps remove the confusion that often arises from similar-sounding topics.
This resource is designed to make understanding Chapter 6 of Class 9 Science much easier.
We have created the most important questions and their answer for you to practice.
We suggest first you go through the short notes and the respective MCQs on Plant and animal tissues, the link of which are given below:
- Animal Tissue short notes
- Animal Tissue MCQs
- Plant Tissue short notes
- Plant Tissue MCQs(comming soon )
Now lets dive in !
Plant Tissue
Key Differences : Plants vs Animals
What is Tissue?
Understanding the basic unit of plant and animal organization
A tissue is a group of cells that are:
- Similar in structure and/or
- Work together to perform a particular function
- Need upright support → large amount of supportive tissue
- Supportive tissue = mostly dead cells
- Lower energy consumption
- Most tissues = living cells
- Higher energy consumption
- Require constant energy for movement and metabolism
- Growth limited to certain regions
- Some tissues divide throughout life
- Dividing tissues = localised (meristematic)
- Classified as: Meristematic (growing) and Permanent (non-dividing)
- Uniform cell growth
- No clear demarcation between dividing & non-dividing regions
- Organs & organ systems are highly specialised and localised
- Animals: More specialised organisation with complex organ systems
- Plants: Less specialised organisation, even in complex forms
Differences arise due to different modes of life:
- Plants: Sedentary existence (fixed in place)
- Animals: Active locomotion (movement)
- Also linked to different feeding methods and adaptations
Growth occurs only in specific regions due to the presence of meristematic tissue (dividing tissue).
Meristematic Tissue
Meristematic Tissue – Q&A
Discover the growing tissue that drives plant development
- Apical meristem: at tips of stems & roots → increases length
- Intercalary meristem: near the node (e.g., in grasses)
- Lateral meristem: includes cambium → increases girth of stem/root
- Very active cells
- Dense cytoplasm
- Thin cellulose walls
- Prominent nuclei
- Lack vacuoles
Permanent Tissue
Permanent Tissues in Plants – Q&A
Explore how plant cells specialize through nested questions
When meristematic cells:
- Take up a specific role
- Lose the ability to divide
They undergo differentiation to become permanent tissue.
Simple permanent tissues consist of only one type of cell. There are three main types:
- Most common simple permanent tissue
- Living cells with thin walls and unspecialised structure
- Loosely arranged → large intercellular spaces
- Functions:
- Stores food
- With chlorophyll → chlorenchyma (performs photosynthesis)
- In aquatic plants → aerenchyma (has air cavities for floating)
- Provides flexibility and mechanical support
- Allows bending (e.g., in tendrils and climber stems)
- Found in leaf stalks below the epidermis
- Living, elongated cells with irregularly thickened corners
- Has very little intercellular space
- Makes the plant hard and stiff
- Dead cells, long and narrow
- Walls thickened with lignin → often no internal space
- Found in:
- Stems
- Around vascular bundles
- Leaf veins
- Hard coverings of seeds/nuts (e.g., coconut husk)
- Provides strength and rigidity
Protective Tissues (Epidermis)
Protective Tissues in Plants – Q&A
How do plants defend themselves? Explore through layered questions.
Protective tissues form the outer covering of plants and shield them from:
- Water loss
- Mechanical injury
- Pathogens (e.g., fungi)
The main types are: Epidermis (in young plants) and Cork (in older plants).
- It is the outermost layer of the entire plant body
- Usually a single layer of cells
- Forms a continuous layer with no intercellular spaces
- Cells are flat, with thicker outer and side walls
Aerial parts (stems, leaves) secrete a waxy, water-resistant layer called cuticle, which prevents:
- Water loss through evaporation
- Mechanical injury from wind, dust, etc.
- Fungal invasion and other pathogens
- In dry habitats, the epidermis becomes thicker
- Desert plants have a thick cutin coating (a waterproof substance) to minimize water loss
Two key specialized features:
- Pores in the leaf epidermis
- Each surrounded by two kidney-shaped guard cells
- Function: enable gas exchange (CO₂ in, O₂ out) and transpiration (water vapor loss)
- Long, hair-like outgrowths of root epidermal cells
- Increase surface area for absorption of water and minerals
- Greatly enhance the root’s absorptive capacity
- As the plant ages, the epidermis is replaced by cork
- Produced by a secondary meristem called cork cambium (in the cortex)
- Made of dead cells
- Compactly arranged with no intercellular spaces
- Cell walls contain suberin — a fatty substance that makes them impermeable to water and gases
- Replaces epidermis in older stems and branches
- Provides a tough, waterproof, and airtight barrier
- Protects against mechanical damage, infection, and desiccation
Complex Permanent Tissue
- Xylem
- Phloem
Complex Permanent Tissues – Q&A
How do xylem and phloem enable plant survival on land?
Complex permanent tissue is made of more than one type of cell that work together to perform a common function. The two main types are xylem and phloem, which together form the vascular bundle. This vascular system is a key evolutionary adaptation that enables plants to survive on land by efficiently transporting water, minerals, and food.
Because they form a continuous transport system that:
- Delivers water and minerals from roots to leaves (via xylem)
- Distributes food (sugars) from leaves to all plant parts (via phloem)
- Enables plants to grow tall and survive away from constant water sources
A vascular bundle is a strand of conducting tissue in plants that contains both xylem and phloem, often surrounded by supportive tissue. It runs through roots, stems, and leaves like a “plumbing system.”
Xylem transports water and dissolved minerals from roots to the rest of the plant (upward movement). It also provides mechanical support. It is composed of four types of cells:
- Tubular cells with thick, lignified walls
- Dead at maturity (no cytoplasm)
- Water moves between them through pits in the walls
- Found in all vascular plants
- Long, cylindrical tubes formed by end-to-end vessel elements
- Thick, lignified walls
- Dead at maturity
- More efficient than tracheids for water conduction (due to open ends)
- Found mainly in angiosperms (flowering plants)
- The only living cells in xylem
- Store starch, fats, and other substances
- Help in radial conduction of water
- Dead, elongated cells with very thick walls
- Provide mechanical strength and support to the plant
- Do not participate in conduction
Phloem transports food (mainly sucrose) from leaves (source) to other plant parts like roots, fruits, and growing tips (sinks). Unlike xylem, most phloem cells are living and require energy for active transport.
- Tubular structures made of sieve tube elements joined end-to-end
- End walls are perforated (sieve plates) to allow flow of sap
- No nucleus at maturity, but living
- Found in angiosperms
- Primitive conducting cells in gymnosperms
- No sieve plates; transport occurs through sieve areas on side walls
- Less efficient than sieve tubes
- Specialized parenchyma cells associated with sieve tubes
- Have nucleus, dense cytoplasm, and many mitochondria
- Regulate activity of sieve tubes and provide energy for transport
- Connected to sieve tubes via plasmodesmata
- Phloem parenchyma: Living cells that store food and other substances
- Phloem fibres: Dead cells that provide mechanical support (not involved in conduction)
- Note: All phloem cells are living except phloem fibres
- Direction: Xylem → upward only; Phloem → bidirectional (up & down)
- Content: Xylem → water & minerals; Phloem → organic food (sugars)
- Cell state: Xylem → mostly dead; Phloem → mostly living
- Energy use: Xylem → passive (no energy); Phloem → active (requires energy)
Animal Tissue
Animal Tissues
Understanding the building blocks of animal bodies
Movement (e.g., chest during breathing) is caused by muscle cells.
- Contraction and relaxation of muscle cells → movement
- Oxygen inhaled → absorbed in lungs
- Transported to all body cells via blood
- Cells need oxygen for mitochondrial functions (energy production)
- Transports oxygen and food to cells
- Collects wastes → carries to liver and kidney for disposal
Blood and muscle are examples of tissues — groups of similar cells working together to perform a specific function.
Based on function, animal tissues are classified into four types:
- Epithelial tissue
- Connective tissue (e.g., blood)
- Muscular tissue (e.g., muscle)
- Nervous tissue
EPITHELIAL TISSUE
Epithelial Tissue – Q&A
Explore structure, function, and types through questions
Epithelial tissue acts as a covering or protective tissue. It:
- Covers organs and body cavities
- Forms a barrier between different body systems
- Skin
- Lining of mouth
- Lining of blood vessels
- Lung alveoli
- Kidney tubules
- Cells are tightly packed in a continuous sheet
- Very little cementing material between cells
- Almost no intercellular spaces
- Rests on a basement membrane that separates it from underlying tissue
All substances entering or leaving the body must cross the epithelium. Its permeability regulates exchange between:
- The body and the external environment
- Different parts of the body
There are six main types. Click below to explore each:
- Composed of flat, thin cells
- Found in: blood vessels, lung alveoli, lining of mouth, oesophagus
- Allows easy diffusion and transport of substances
- Has many layers of squamous cells
- Found in the skin
- Prevents wear and tear from friction and abrasion
- Made of tall, pillar-like cells
- Found in the inner lining of the intestine
- Aids in absorption and secretion
- Columnar cells with cilia (hair-like projections)
- Found in the respiratory tract
- Cilia move mucus forward to clear dust and pathogens
- Composed of cube-shaped cells
- Found in: kidney tubules, salivary gland ducts
- Provides mechanical support and aids in secretion
- Epithelial cells specialized as gland cells
- Secrete substances (e.g., mucus, enzymes, hormones) at the surface
- Formed when epithelium folds inward to create multicellular glands
CONNECTIVE TISSUE
Connective Tissue – Q&A
Explore how connective tissue supports, connects, and protects the body
It is called connective tissue because it connects different parts of the body, providing support, structure, and integration between organs and systems.
- Cells are loosely spaced
- Embedded in an intercellular matrix
- The matrix can be jelly-like, fluid, dense, or rigid, depending on the tissue’s function
There are seven main types. Click below to explore each:
- Has a fluid matrix called plasma
- Contains RBCs, WBCs, and platelets
- Plasma carries proteins, salts, and hormones
- Transports: gases, digested food, hormones, and waste
- Has a hard, rigid, nonflexible matrix
- Matrix made of calcium and phosphorus compounds
- Supports the body, anchors muscles, and protects internal organs
- Connects bone to bone
- Elastic and strong
- Contains very little matrix
- Connects muscle to bone
- Fibrous and strong
- Has limited flexibility
- Has widely spaced cells
- Matrix is solid, made of proteins and sugars
- Found in: joints, nose, ear, trachea, larynx
- Smoothens joint surfaces and provides flexibility (e.g., in the ear)
- Found between skin and muscles, around blood vessels and nerves, and in bone marrow
- Fills spaces, supports organs, and aids in tissue repair
- Stores fat below the skin and between organs
- Cells are filled with fat globules
- Acts as an insulator and energy reserve
MUSCULAR TISSUE
Muscular Tissue – Q&A
Discover how muscles enable movement through specialized cells
- Made of elongated cells called muscle fibres
- Contains contractile proteins
- These proteins allow muscles to contract and relax, causing movement
There are three main types. Click below to explore each:
- Moved by conscious will (e.g., limbs)
- Attached to bones → aids body movement
- Shows striations (light & dark bands) under microscope
- Cells are long, cylindrical, unbranched, and multinucleate
- Not under conscious control
- Controls:
- Food movement in alimentary canal
- Contraction/relaxation of blood vessels
- Iris of eye, ureters, bronchi
- Cells are spindle-shaped, pointed ends, uninucleate
- No striations → also called unstriated muscle
- Found only in the heart
- Involuntary and contracts rhythmically for life
- Cells are cylindrical, branched, and uninucleate
NERVOUS TISSUE
Nervous Tissue – Q&A
Explore how neurons transmit signals for rapid body responses
- Highly specialised to receive stimuli and transmit signals rapidly
- Found in the brain, spinal cord, and nerves
- Its basic unit is the neuron (nerve cell)
- Cell body: contains nucleus and cytoplasm
- Dendrites: short, branched processes that receive signals
- Axon: single, long, thin fibre that carries nerve impulse away
- A neuron can be up to 1 metre long
- A nerve impulse is an electrical signal passing along the axon
- The impulse moves from the axon of one neuron to the dendrites of the next neuron
- This enables voluntary muscle movement
- Nerve + muscle tissue together allow rapid response to stimuli
FAQs : Tissue Class 9 chapter 6 Question And Answer
Are all the probable questions are included?
Yes! We have analysed the past many years questions and then elisted here.
Will the questions in the exam will come from the ‘Tissue Class 9 chapter 6 Question And Answer’?
That we can’t guarantee. But if you could answer the questions then consider yourself prepared to tackle any questions.
If I memorise the answer then will it do?
It may but we suggest prepare your NCERT textbook as it is recomended by the teachger
If you have any further questions, please ask in the comments.
