Mycology Laboratory Quiz

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10 Questions

Which type of fungi produce pigment best at room temperature?

Saprophytic fungi

What is the main sterol in the cell membranes of dematiaceous fungi?

Ergosterol

What are the causative agents of phaeohyphomycosis, chromoblastomycosis, and eumycotic mycetoma?

Dematiaceous fungi

What are the structures from which molds grow?

Septate hyphae

Which species is an example of a dematiaceous fungus?

Fonsecaea pedrosoi

Which of the following is a characteristic of dematiaceous fungi?

They produce pigment best at room temperature

What is the main sterol found in the cell membranes of dematiaceous fungi?

Ergosterol

Which type of fungi can grow as molds or yeasts?

Dimorphic fungi

What is the main component of the cell wall of eukaryotic fungi?

Chitin

What is the characteristic feature of hyphae in dematiaceous fungi?

They contain melanin in their cell walls

Study Notes

Fungi Characteristics

  • Dematiaceous fungi produce pigment best at room temperature.
  • The main sterol in the cell membranes of dematiaceous fungi is ergosterol.
  • Dematiaceous fungi are the causative agents of phaeohyphomycosis, chromoblastomycosis, and eumycotic mycetoma.
  • Molds grow from structures called hyphae.
  • An example of a dematiaceous fungus is Curvularia lunata.
  • A characteristic of dematiaceous fungi is the production of dark-colored pigments.
  • Dimorphic fungi can grow as either molds or yeasts.
  • The main component of the cell wall of eukaryotic fungi is chitin.
  • The characteristic feature of hyphae in dematiaceous fungi is the presence of melanin, which gives them a dark color.

Test your knowledge of mycology in the laboratory with this quiz. Learn about the general characteristics of eukaryotic organisms, their role as parasites or saprophytes, and the composition of their cell walls. Sharpen your understanding of dematiaceous and hyaline species while preparing for the laboratory.

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