22 Questions
What is the primary function of the capsule in Cryptococcus?
It prevents phagocytosis
What is the main difference between commensal yeasts and moulds?
There are commensal yeasts, but no commensal moulds
What is the primary substrate used by dermatophytes to infect?
Keratin
What is the name of the dermatophyte infection that affects the scalp?
Tinea capitis
How does Aspergillus fumigatus cause disease?
Through inhalation of spores
What is the name of the toxin produced by Aspergillus flavus that is ingested through contaminated food?
Aflatoxin
What is the primary way yeasts reproduce?
By budding
Which of the following is a key difference between yeasts and moulds?
Yeasts are unicellular, while moulds are multicellular
How do yeasts form pseudohyphae?
Via bud elongation
What is the term for the way moulds produce specialized structures for reproduction?
Spore formation
How can you distinguish between mould and yeast infections?
Using a fluorescence stain
What is a characteristic feature of mould hyphae?
They are regularly septate and parallel-sided
Which yeast species is commensal to the human GI tract?
Candida albicans
What is the most common cause of candidiasis?
Candida albicans
What is the name of the skin lesion infection associated with the face and scalp?
Candida granuloma
What is the name of the infection associated with nail infections?
Chronic mucocutaneous candidiasis
What is the function of the destructive enzymes produced by Candida albicans?
To degrade extracellular matrix proteins
What is the name of the toxin produced by Candida albicans during hyphal invasion?
Candidalysin
What is the name of the disease caused by Cryptococcus neoformans?
Cryptococcosis
What is the target of Cryptococcus neoformans?
The brain
What is the name of the yeast species that causes cryptococcosis?
Cryptococcus neoformans
What is the name of the infection associated with baby's diapers?
Nappy dermatitis
Test your knowledge of fungi types, including environmental, commensal, and pathogenic fungi, and learn about the differences between yeasts and moulds, including their reproduction methods and characteristics.
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