12 Cellular organisation

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  • Created by: Naana
  • Created on: 27-03-15 14:28
What is cell differentiation?
When a cell becomes specialised in structure to suit the role that they will carry
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How does a cell differentiate?
Each cell contains the genes needed for it to develop into any one of the many different cells in an organism. But only a few of these genes are switched on (expressed) in any one cell
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What is a tissue?
A group of similar cells organised into a structural unit that serves a particular/ specific function
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What are organs?
An organ is a combination of different tissues that are coordinated to perform a particular function
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How are organs arranged into organ systems?
Organs work together as a single unit known as an organ system. These systems may be grouped together to perform particular functions more efficiently.
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Give 3 examples of organ systems found in humans
Digestive system- made up of salivary glands, oesophagus, stomach, pancreas and liver. Respiratory system- made up of trachea, bronchi and lungs. Circulatory system- made up of heart, arteries and veins
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Card 2

Front

How does a cell differentiate?

Back

Each cell contains the genes needed for it to develop into any one of the many different cells in an organism. But only a few of these genes are switched on (expressed) in any one cell

Card 3

Front

What is a tissue?

Back

Preview of the front of card 3

Card 4

Front

What are organs?

Back

Preview of the front of card 4

Card 5

Front

How are organs arranged into organ systems?

Back

Preview of the front of card 5
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