18 Questions
What is the approximate number of bacteria present in an average lecture theatre?
20 quintillion
How many unique microbial genes are present in the human microbiome?
10 million unique microbial genes
What is the relationship type where one organism benefits and the other is unaffected?
Commensalism
Which body site has the most diverse microbiota?
Gut
What functions do the human microbiome serve?
Protective and metabolic functions
Where does the acquisition of a person's microbiome typically start?
Sterile (Cesarean section) environment
What plays a role in immune tolerance according to the text?
Diet
Which of the following predominantly colonizes the skin and skin structures, according to the text?
Coagulase negative staphylococci
What type of flora is normally present on the skin?
Resident flora
At what age is the microbiota thought to 'stabilize' according to the text?
3-4 years
Which factors affect the microbiota based on the text?
Diet, environment, and host genetics
What has low-level microbiome according to the text?
Placenta
What is the most cost-effective infection control measure?
Hand hygiene
What factor can reduce compliance rates for hand disinfection?
Wearing jewellery
Which of the following is NOT mentioned as part of the normal flora of the respiratory tract?
Enterococci
What does dysbiosis refer to?
A microbial imbalance on or inside the body
Which of the following is a component of the gut microbiome?
Archaea
How can dysbiosis affect long-term metabolic consequences?
By disrupting the composition and diversity of microbiota
Test your knowledge on the amount of bacteria present in an average lecture theatre with this informative quiz. Choose the correct option from the provided multiple-choice answers and learn interesting facts about microbiology.
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