Microorganisms in the Environment: Bacterial Diseases Quiz
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Questions and Answers

What is a microorganism?

  • A non-living organism that is visible to the naked eye
  • A multicellular organism that can be seen without a microscope
  • An organism that can only be seen with a microscope and is made of cells (correct)
  • An organism that is too small to be seen even with a microscope

Which of the following is a microorganism?

  • Protozoa (correct)
  • Mushroom
  • Fish
  • Tree

What is a common characteristic of many microorganisms?

  • They are all made of only one cell (correct)
  • They are all plants
  • They are all multicellular
  • They are all visible to the naked eye

Which of the following is NOT a kind of microorganism?

<p>Mushroom (C)</p> Signup and view all the answers

What is the defining characteristic of bacteria?

<p>They are made of only one cell (C)</p> Signup and view all the answers

What is the main characteristic that distinguishes bacteria cells from animal and plant cells?

<p>Bacteria cells are single-celled organisms (C)</p> Signup and view all the answers

Why are viruses not usually classified as microorganisms?

<p>Viruses are not composed of cells (D)</p> Signup and view all the answers

What distinguishes yeast from mushrooms and toadstools?

<p>Yeast is made of single cells, not threads (A)</p> Signup and view all the answers

What is a colony of microorganisms?

<p>A collection of many cells produced through cell division (A)</p> Signup and view all the answers

How do scientists usually let microorganisms grow in a laboratory setting?

<p>In a Petri dish containing sterile agar jelly (D)</p> Signup and view all the answers

Bacteria can be easily seen with the naked eye.

<p>False (B)</p> Signup and view all the answers

Most fungi, including mushrooms and toadstools, are always microorganisms.

<p>False (B)</p> Signup and view all the answers

Yeast cells feed on sugar in the grapes.

<p>True (A)</p> Signup and view all the answers

Viruses are larger than bacteria.

<p>False (B)</p> Signup and view all the answers

A single microorganism is large enough to see without a microscope.

<p>False (B)</p> Signup and view all the answers

Some bacteria can cause diseases in humans. True or False?

<p>True (A)</p> Signup and view all the answers

A microorganism is a living organism that is visible to the naked eye. True or False?

<p>False (B)</p> Signup and view all the answers

Yeasts are multicellular microorganisms. True or False?

<p>False (B)</p> Signup and view all the answers

Algae are not considered microorganisms. True or False?

<p>False (B)</p> Signup and view all the answers

Fungi are not included in the various kinds of microorganisms. True or False?

<p>False (B)</p> Signup and view all the answers

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