Tissues, Organs and Organ Systems

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  • Created by: skye.07
  • Created on: 19-12-16 16:03

Organisation

Multicellular organisms usually contain differentiated cells, adapted to perform specific functions.  

 

A tissue is a group of specialised cells which have a similar structure and function. 

 

An organ is a group of different tissues which work together to form a specific function. 

 

An organ system is a group of organs that work together in an organism. 

 

During the development of a multicellular organism, cells differentiate so that they can perform specific functionsDifferentiation is the process by which a cell becomes a specialised type of cell. 

 

In Animals

 

 There are many different types of tissue. Here are some: 

  • Muscular Tissue, Contracts and brings about movement. 

  • Glandular Tissue, Produces substances such as enzymes and hormones. 

  • Epithelial Tissue, Covers some parts of the body 

 

The stomach is an example of an organ composed of different tissues, it contains: 

  • Muscular Tissue, 

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