Starter : Can you remember what an animal and a plant cell looks like? Can you draw and label them?
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Transcript of Starter : Can you remember what an animal and a plant cell looks like? Can you draw and label them?
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Starter :
• Can you remember what an animal and a plant cell looks like?
• Can you draw and label them?
![Page 2: Starter : Can you remember what an animal and a plant cell looks like? Can you draw and label them?](https://reader034.fdocuments.us/reader034/viewer/2022052701/56649ebf5503460f94bca6c2/html5/thumbnails/2.jpg)
Keeping Healthy
Microbes
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Would you touch this?
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Would you touch this?
![Page 5: Starter : Can you remember what an animal and a plant cell looks like? Can you draw and label them?](https://reader034.fdocuments.us/reader034/viewer/2022052701/56649ebf5503460f94bca6c2/html5/thumbnails/5.jpg)
Would you touch this?
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Would you eat this?
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Why not?
• Disgust keeps us away from things which look as if they could make us ill…
• …waste like faeces, vomit, pus infected wounds, decaying food and the animals found with it.
• All these contain microbes.
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Not all Microbes are bad -
Some microbes like Yeast help us bake bread
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Microbes
•Fungus•Virus
•Bacterium
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Fungus How is this different from a plant cell?
Give examples of where fungi will grow
Key Word : Decomposer
fungi are made of long thin threads…
when lots grow together – it looks fluffy
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Bacterium
http://www.youtube.com/watch?v=gEwzDydciWc
How are bacteria different to animal cells?
• salmonella (causes food poisoning)
Are bacteria classified as living organisms?
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Virus
chicken pox (affects skin and nerves) common cold influenza, flu
How do virus grow?
Is a virus a living organism?
Some can hide in your cells for years.
Cold sore viruses hide in nerve cells. They can pop out to cause an infection whenever you are feeling a bit run down.
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These viruses detected a white blood cell and stuck to it. Their genes will enter it and force the cell to make new virus particles.
A virus can’t reproduce by itself.
Eventually the cell dies. Virus particles burst out through its membrane and then spread to new cells.