Science > Living Things > Microorganisms - Quiz

Science > Living Things > Microorganisms - Quiz


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Microorganisms
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You scored 10 out of 10

1. Most microorganisms cannot be seen without a ...
Your answer - Microscope.
CorrectCorrect.
A microscope is for looking at tiny things like microorganisms.

2. Which of these is NOT true about microorganisms?
Your answer - They are all harmful.
CorrectCorrect.
Some microorganisms can be harmful; some can be useful.

3. What is yeast used for?
Your answer - To make bread rise.
CorrectCorrect.
Yeast is a microorganism that helps bread rise.

4. Why should cooked and uncooked foods be stored separately?
Your answer - To stop bacteria spreading from one to the other.
CorrectCorrect.
Bacteria can spread from uncooked to cooked food.

5. Which of these is NOT caused by a microorganism?
Your answer - A sprained ankle.
CorrectCorrect.
A sprained ankle is usually the result of an accident; it is not caused by a microorganism.

6. Which of these microorganisms is useful?
Your answer - Bacteria that decompose leaves.
CorrectCorrect.
These bacteria break leaves down into useful substances for other organisms to use.

7. Which of these microorganisms is harmful?
Your answer - Fruit mould.
CorrectCorrect.
Fruit mould is harmful. It rots fruit and can cause food poisoning.

8. Bacteria and viruses are both types of microorganisms. Which is smaller?
Your answer - Viruses.
CorrectCorrect.
Viruses are smaller.

9. Cleaning your teeth regularly helps prevent tooth decay because ...
Your answer - Brushing removes sugar that microorganisms like to eat.
CorrectCorrect.
Microorganisms that cause decay live off sugar on your teeth, turning it to acid.

10. Which of these is true?
Your answer - Microorganisms are all around us.
CorrectCorrect.
There are microorganisms almost everywhere – we just can't see them.


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