What are living things made of?. Cells are the building blocks of life – they come in all shapes and sizes. Some organisms are unicellular – they are made up of only one cell.
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Cells are the building blocks of life – they come in all shapes and sizes.
Some organisms are unicellular– they are made up of only one cell.
Other organisms are multicellular– they are made up of many types of cells. Can you think of some examples of unicellular and multicellular organisms?
A cell is specialized for its function.
How Does a Cell Resemble a City?
Cells in different parts of the body are specialized which means they all perform different jobs.
Red Blood Cells Carry Oxygen
Red blood cells have a special dome shape to help them carry oxygen around our body.
Nerve cells are long, sleek, and contain dendrites which help them to send signals quickly.
They have a long tail to help them swim and their head contains the nucleus.
Contains fibres that help the cell contract.
They contain chemicals called enzymes that kill and destroy bacteria.
Goblet Cells Secrete Mucus
The Goblet cells make mucus and it is used to protect other cells.
Write the name of the cell and the description that matches in your notes.
Many organs together make up a system.
How Many body Systems can you think of?