KS3 Microbes

Which is the best definition of a microbe?

• A small organism that can be beneficial as well as harmful

• A small organism that causes a disease

• A small organism that can only be seen with a microscope

• A small organism that is living

Pathogens are

• Microorganisms that are beneficial to the body

• Microorganisms that cause harm

• Microorganisms that create vitamins

• Microorganisms that breakdown bodies

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Which is not an example of a type of microorganism?

• Bacteria

• Influenza

• Virus

• Fungus

Answer explanation

Influenza is t name of the disease but it is CAUSED by a micororganism.

_____________simple, one-celled organisms that multiply rapidly.

• bacteria

• viruses

• fungi

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Disease causing microorganisms are called ...

• pathogens

• white blood cells

• red blood cells

• infections

Tags

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___________are simple, plant-like organisms that live on dead organic matter. (yeast and mold)

• bacteria

• viruses

• protozoa

• fungi

Influenza is a disease caused due to

• bacteria

• Virus

• Protozoa

• None of the above

One of the reasons microorganisms are beneficial to the environment is because they

• Cause disease in plants and animals

• Compete with beneficial organisms

• Breakdown nutrients and recycle them into the soil

• Create algal blooms in freshwater lakes

Tags

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An infection is best described as ...

• a pathogen entering a wound

• a high temperature above 37 degrees Celscius

• the breakdown of a barrier on the body

• the entry and reproduction of a pathogen in the body

Which type of food requires a microorganism to make it?

• Yoghurt

• Milk

• Cake

• Toast