Difference between Simple Tissues and Complex Tissues

Simple tissues and complex tissues are two types of tissues found in plants. They differ in their structure, function, and composition. Let's explore the differences between these two types of tissues in detail:

1. Structure:
- Simple tissues: Simple tissues consist of only one type of cells that are structurally and functionally similar. They are made up of a single layer of cells and lack specialized structures. Examples of simple tissues include parenchyma, collenchyma, and sclerenchyma.
- Complex tissues: Complex tissues, on the other hand, are composed of multiple types of cells that work together to perform specific functions. They are made up of several layers of cells and possess specialized structures. Examples of complex tissues include xylem and phloem.

2. Composition:
- Simple tissues: Simple tissues are composed of cells of the same type. For example, parenchyma tissues are composed of parenchyma cells, collenchyma tissues are composed of collenchyma cells, and sclerenchyma tissues are composed of sclerenchyma cells.
- Complex tissues: Complex tissues are composed of different types of cells that complement each other's functions. For instance, xylem tissues are composed of vessel elements, tracheids, fibers, and parenchyma cells, while phloem tissues consist of sieve tube elements, companion cells, fibers, and parenchyma cells.

3. Function:
- Simple tissues: Simple tissues have various functions depending on their type. Parenchyma tissues are involved in photosynthesis, storage, and secretion. Collenchyma tissues provide mechanical support to young plant parts. Sclerenchyma tissues provide rigidity and strength to plant organs.
- Complex tissues: Complex tissues have specialized functions. Xylem tissues primarily transport water, minerals, and provide mechanical support. Phloem tissues transport organic compounds, such as sugars, from leaves to other parts of the plant.

4. Distribution:
- Simple tissues: Simple tissues are widespread throughout the plant body. They are found in the epidermis, cortex, pith, and other regions of plants.
- Complex tissues: Complex tissues are found in specific regions of plants. Xylem tissues are commonly found in the center of stems and roots, while phloem tissues are located adjacent to the xylem.

In conclusion, simple tissues consist of one type of cells that are structurally similar, while complex tissues are composed of multiple types of cells that work together to perform specialized functions. Simple tissues are less specialized and have a wide distribution in the plant body, whereas complex tissues are more specialized and found in specific regions.

Simple tissue consists of similar cells whereas complex tissues consists of more than one type of cells.

Simple tissues are divided as Parenchyma, Collenchyma and Schlernchyma.Complex tissues are divided as xylem and phloem.