Bacteria Quizzes & Trivia

Quick – take your best guess of how many bacteria are living in your gut right now. Did you say a thousand? A million? Or more? If you guessed a hundred trillion or so, you’re right on! If you never realized how much space you’re sharing with these creepy creatures, you should take our bacteria quiz and learn more.

Bacteria can cause thousands of diseases from gingivitis to gangrene; they live in environments anywhere from the bottom of the ocean to Antarctic ice sheets; and some of them even help keep you healthy instead of making you sick! Before you reach for the antibacterial hand sanitizer, find out more about the mysterious microscopic world right under your nose – and inside of it!
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Let's test your knowledge of bacteria cell structures!

Questions: 7  |  Attempts: 6014   |  Last updated: Dec 12, 2019
  • Sample Question
    Which bacteria cell part goes in the box labelled a? 

Gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their cell wall. Test out what you know...

Questions: 11  |  Attempts: 1607   |  Last updated: Oct 16, 2018
  • Sample Question
     Poly-D-glutamicacid protein capsule that prevents phagocytosis.

What do you know about bacterial transformation? Do you assume you can pass this quiz? Bacterial transformation is a horizontal gene transfer process by which some bacteria take up foreign genetic material (naked DNA) from the...

Questions: 10  |  Attempts: 1805   |  Last updated: Sep 3, 2020
  • Sample Question
    DNA transformation involves the transfer of naked DNA into a recipient cell.

This quiz will test your knowledge of Bacteria structure and function. Let's start this quiz now!

Questions: 17  |  Attempts: 12058   |  Last updated: May 4, 2017
  • Sample Question
    Bacteria can be which of the following shapes?


Questions: 15  |  Attempts: 1772   |  Last updated: Sep 2, 2020
  • Sample Question
    Examples of gram positive cocci:

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Bacteria Questions & Answers

What is the difference between Atypical Bacteria And Typical Bacteria?
Typical bacteria are the common, well-known bacteria, while the atypical bacteria, also known as the incomplete bacteria. The typical bacteria are a member of the large group of unicellular microorganisms that have cell walls but lack organelles and
What is the difference between mild, moderate and severe pneumonia?
Pneumonia simply means a chronic or acute inflammation of the lungs caused by a virus, bacteria, and other types of micro-organisms. Pneumonia is in three stages, mild, moderate, and severe pneumonia. Mild pneumonia occurs at the early stage of the c
What is the difference between Aerobic and Anaerobic Bacteria?
It is sometimes confusing to be given different terms, especially if you are not too familiar with the terms. When you say aerobic bacteria, this is a type of bacteria that would need oxygen so that it can survive properly. When you say anaerobic b
What is the best treatment for an unknown viral disease?
The correct answer to this question is bed rest. This treatment involves a voluntary time of lying in bed. As of 1999, a review found no benefits of bed rest, but still today, there are many cases where this treatment is used. 20% of women in the Un
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