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Unit 8C
Microbes and Disease
Name: ……………………………..
Year 8: …………
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Unit 8C: Microbes and Disease_______________________________________________________________________________________
Q1: Single-celled organisms
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Q2: Growing micro-organisms in a laboratory
These pictures show how to grow bacteria on agar.
Put them in the correct order.
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Q3: Comparing toilet cleaners
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Q4: Making yoghurt
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Q5: Micro-organisms and disease
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Q6: How to stop an epidemic
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Q7: How Jesse Lazear’s death from yellow fever helped to build the Panama Canal
Put the following fact cards into the correct sequence.
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Q8: Outbreak!
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Q9: Body invaders
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Q10: Protecting ourselves against disease
Complete this table.
Part of your body How it protects you against disease
Saliva contains an enzyme that can kill micro-organisms.
Hairs in your nostrils trap micro-organisms, and mucus contains an enzyme that can
kill micro-organisms.
Most micro-organisms are killed by acid.
Micro-organisms can’t get through the tight layers of cells.
Tears contain an enzyme that can kill micro-organisms.
2- your body makes enzymes that can kill micro-organisms.Name three parts of your body that use enzyme to protect you against disease.
__________________________ __________________________ __________________________
Q11: What happens when you get a cold?
The sentences below describe how white blood cells protect you against disease.Put them in the correct order.
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Q12: The body police
P.S:There are two other types of antibodies, which work in different ways:
Antibodies stick to the micro-organism so it can’t get into cells and cause disease.
Antibodies join micro-organisms together into a clump, which white blood cells engulf and destroy.
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Q13: Which antibiotic?
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Q14: