20 Questions
What is a microorganism?
An organism that can only be seen with a microscope and is made of cells
Which of the following is a microorganism?
Protozoa
What is a common characteristic of many microorganisms?
They are all made of only one cell
Which of the following is NOT a kind of microorganism?
Mushroom
What is the defining characteristic of bacteria?
They are made of only one cell
What is the main characteristic that distinguishes bacteria cells from animal and plant cells?
Bacteria cells are single-celled organisms
Why are viruses not usually classified as microorganisms?
Viruses are not composed of cells
What distinguishes yeast from mushrooms and toadstools?
Yeast is made of single cells, not threads
What is a colony of microorganisms?
A collection of many cells produced through cell division
How do scientists usually let microorganisms grow in a laboratory setting?
In a Petri dish containing sterile agar jelly
Bacteria can be easily seen with the naked eye.
False
Most fungi, including mushrooms and toadstools, are always microorganisms.
False
Yeast cells feed on sugar in the grapes.
True
Viruses are larger than bacteria.
False
A single microorganism is large enough to see without a microscope.
False
Some bacteria can cause diseases in humans. True or False?
True
A microorganism is a living organism that is visible to the naked eye. True or False?
False
Yeasts are multicellular microorganisms. True or False?
False
Algae are not considered microorganisms. True or False?
False
Fungi are not included in the various kinds of microorganisms. True or False?
False
Test your knowledge about diseases caused by bacteria and other organisms with this quiz on microorganisms. Explore the impact of microorganisms in the environment and learn about growing microorganisms on agar jelly.
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