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: 4224   |  Last updated: Dec 12, 2019
  • Sample Question
    Which bacteria cell part goes in the box labelled a? 

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

Questions: 17  |  Attempts: 10938   |  Last updated: May 4, 2017
  • Sample Question
    Bacteria can be which of the following shapes?


Questions: 24  |  Attempts: 285   |  Last updated: Jan 18, 2013
  • Sample Question
    Clostridium spp. cause disease by producing endotoxins



Questions: 10  |  Attempts: 1434   |  Last updated: May 20, 2020
  • Sample Question
    Which two types of medically important bacteria are acid fast?

Probiotics are living microorganisms that are believed to be beneficial to the body when taken in. Indeed, not all microorganisms are dangerous to the body. Below are questions to better enlighten you on them. All the best.

Questions: 12  |  Attempts: 476   |  Last updated: Jan 11, 2018
  • Sample Question
    There are more gut bacteria than the total number of cells in the body

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Bacteria Questions & Answers


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 outermost layer of bacterial cell called?
I think it will be glycocalyx. Because if glycocalyx is rigidly packed with bacteria it is called capsule, if loosely attached it is called slime layer.
What treatments would you recommend for the symptoms of a viral flu, which are high fever, sore throat, and headache? 
SleeprestwaterSleep is a good part because your body is more alive then and water will get you hydrated and will help out with your headache
What is the outermost layer of a bacterial cell?
The outermost layer of a bacteria cell is called a capsule. The capsule majorly consists of polysaccharides, and the nature of polysaccharides are they are not easily washed away with water. Thus, bacteria has its power to cause diseases and sickness
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