Human Microbiota 3rd Lecture

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What is the main reason why the role of Malassezia on the skin remains controversial?

Its presence in healthy skin and pathologies (correct)

Its association with dandruff and eczema

Its role in bacterial infections

Its impact on gut health

What is the human virome?

A collection of all the bacteria found in or on human organs

A collection of all the viruses found in or on human organs (correct)

A collection of all the parasites found in or on human organs

A collection of all the fungi found in or on human organs

What is the primary component of the human gut viral populations?

Virus-like particles (VLPs) (correct)

Fungi

Parasites

Bacteria

Which research article discusses a tissue-level atlas of the healthy human virome?

Kumata et al.A tissue level atlas of the healthy human virome.BMC Biology. 2020 (B) Signup and view all the answers

What is the microbial mechanism primarily responsible for causing caries?

Sucrose (dietary sugar intake) (D) Signup and view all the answers

In which part of the body can you find a microbiota with the highest amount of microorganisms per milliliter?

Oropharynx (D) Signup and view all the answers

What is the main difference between the nasopharynx and oropharynx microbiota in terms of microorganism amount per milliliter?

Oropharynx has a higher amount of microorganisms than nasopharynx. (B) Signup and view all the answers

What percentage of human gut viral populations do bacteriophages make up?

96.1% (D) Signup and view all the answers

What is the potential role of Malassezia according to the text?

Both commensal and pathogen (A) Signup and view all the answers

Which human organ is specifically mentioned in relation to the human virome?

Skin (A) Signup and view all the answers

What is the approximate amount of virus-like particles (VLPs) found in human stools per gram according to the text?

$10^9$ VLPs (D) Signup and view all the answers

Which type of viruses make up the majority of the human gut viral populations?

Bacteriophages (D) Signup and view all the answers

What research field aims to study the correlation between virome, bacteriome, host, and metabolome for respiratory health?

Microbiology (C) Signup and view all the answers

What is the approximate amount of microorganisms per milliliter in the nasopharynx microbiota?

$10^5$ m/o (D) Signup and view all the answers

Where do dominant initial colonizers responsible for caries primarily originate from?

Oral cavity (B) Signup and view all the answers

What is thought to be the main factor contributing to caries among the choices below?

Dietary sugar intake (C) Signup and view all the answers

Which organ stores an estimated $10^{11}$ microorganisms per gram in teeth plaque according to the text?

Oral cavity (C) Signup and view all the answers

What is the focus of Kumata et al.'s research based on the content?

Tissue-level atlas of human virome (C) Signup and view all the answers