Biology · Class 9-10 · CBSE

Plant Tissue Systems

Plants are complex organisms made of different types of cells organized intotissues, which then formtissue systems. These systems work together to perform all the vital functions of the plant.

1What are Plant Tissues?

Atissueis a group of cells that are similar in structure and work together to perform a specific function. In plants, these tissues are broadly classified into two main types based on their ability to divide.

Types of Plant Tissues

  • Meristematic

    Characteristics
    Actively dividing cells, small, dense cytoplasm
    Function
    Growth in length and girth

  • Permanent

    Characteristics
    Cells that have lost the ability to divide, specialized
    Function
    Protection, support, transport, photosynthesis

2The Three Tissue Systems

Plant tissues are organized into three majortissue systemsthat extend throughout the plant body. Each system has a distinct role in the plant's survival and growth.

Plant Tissue Systems

The three tissue systems are organized concentrically within a plant stem.

The picture didn’t pass the label check, so here are its parts.

  1. 1Epidermal — Outer protective layer
  2. 2Ground — Bulk of the plant body
  3. 3Vascular — Transport system

3Functions of Each System

Each tissue system is composed of different types of permanent tissues, all working in coordination. Understanding their individual roles helps us appreciate the complexity of plant life.

Roles of Plant Tissue Systems

  1. 1

    Epidermal Tissue

    Protection from injury, water loss, and pathogens.

  2. 2

    Ground Tissue

    Photosynthesis, storage, and support for the plant.

  3. 3

    Vascular Tissue

    Transport of water, minerals, and food throughout.

Real-life example · How a Leaf Works

In a leaf, the epidermal tissue forms the outer skin, protecting it. The ground tissue (mesophyll) performs photosynthesis. The vascular tissue (veins) brings water and nutrients, and carries away sugars produced.

4Exam Corner

Important for exams

  • Meristematic tissues are responsible forgrowth.
  • Permanent tissues arespecializedfor specific functions.
  • Theepidermal tissue systemprovides protection.
  • Theground tissue systemis involved in photosynthesis and storage.
  • Thevascular tissue systemtransports water and food.
  • Xylem and phloem are components of thevascular tissue system.
Exam tip: Remember to relate the structure of each tissue system to its specific function. For example, the protective epidermis has tightly packed cells.

Exam question · CBSE Class 9 style

Which of the following tissue systems is primarily responsible for the transport of water and nutrients in plants?
  1. A.Epidermal tissue system
  2. B.Ground tissue system
  3. C.Vascular tissue system
  4. D.Meristematic tissue system
Did you know? Did you know? The vascular tissue system in some plants, like trees, can extend for hundreds of feet, efficiently moving water from roots to the highest leaves!

Remember

  • Plant tissues are groups of cells with similarstructure and function.
  • There are two main types of plant tissues:meristematic(dividing) andpermanent(specialized).
  • Plant tissues are organized into threetissue systems: epidermal, ground, and vascular.
  • Theepidermal systemprotects the plant.
  • Theground systemperforms photosynthesis, storage, and support.
  • Thevascular systemtransports water, minerals, and food.

Check yourself

  1. Question 1

    Which tissue system forms the bulk of the plant body and is involved in photosynthesis and storage?

  2. Question 2

    The outermost protective layer of a plant is formed by the:

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