Microbiology Quiz: Bacteria Count in a Lecture Theatre

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is the approximate number of bacteria present in an average lecture theatre?

  • 20 billion
  • 20 quintillion (correct)
  • 20 trillion
  • 20 quadrillion

How many unique microbial genes are present in the human microbiome?

  • 10 million unique microbial genes (correct)
  • 100 million unique microbial genes
  • 100,000 unique microbial genes
  • 1 million unique microbial genes

What is the relationship type where one organism benefits and the other is unaffected?

  • Both benefit
  • Commensalism (correct)
  • Mutualism
  • Parasitism

Which body site has the most diverse microbiota?

<p>Gut (D)</p> Signup and view all the answers

What functions do the human microbiome serve?

<p>Protective and metabolic functions (B)</p> Signup and view all the answers

Where does the acquisition of a person's microbiome typically start?

<p>Sterile (Cesarean section) environment (A)</p> Signup and view all the answers

What plays a role in immune tolerance according to the text?

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

Which of the following predominantly colonizes the skin and skin structures, according to the text?

<p>Coagulase negative staphylococci (D)</p> Signup and view all the answers

What type of flora is normally present on the skin?

<p>Resident flora (D)</p> Signup and view all the answers

At what age is the microbiota thought to 'stabilize' according to the text?

<p>3-4 years (D)</p> Signup and view all the answers

Which factors affect the microbiota based on the text?

<p>Diet, environment, and host genetics (C)</p> Signup and view all the answers

What has low-level microbiome according to the text?

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

What is the most cost-effective infection control measure?

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

What factor can reduce compliance rates for hand disinfection?

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

Which of the following is NOT mentioned as part of the normal flora of the respiratory tract?

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

What does dysbiosis refer to?

<p>A microbial imbalance on or inside the body (C)</p> Signup and view all the answers

Which of the following is a component of the gut microbiome?

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

How can dysbiosis affect long-term metabolic consequences?

<p>By disrupting the composition and diversity of microbiota (D)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Browser