29 Questions
What is the main structural unit of molds?
Hyphae
Which of the following is NOT a characteristic of fungi?
Chlorophyllous
What is the term used to describe the mass of hyphae?
Mycelium
What is the term used to describe hyphae that have cross-walls?
Septate
Which of the following is NOT a type of conidium?
Blastospores
What is the term used to describe hyphae that lack cross-walls?
Coenocytic
What is the most common cause of phaeohyphomycosis?
Dreschlera spicifera
What is the appearance of the colony morphology in the mold form?
Daisy-like, rosette, flowerette with a brown to black greasy appearance
Which condition is also known as Chromomycosis or Verrucous dermatitis?
Chromoblastomycosis
Which organism's colony morphology is described as 'Vase-like/phialides, flask shaped with collarettes'?
Phialophora verrucosa
Which characteristic is NOT mentioned for Fonsecaea compactum?
Flask shaped with collarettes
Which fungal infection is known as 'desert rheumatism' and 'valley fever'?
Coccidioides immitis
What is the culture medium used for growing Duboisii, a causative agent of African histoplasmosis?
Pines medium
What is the infective stage of Coccidioides immitis?
Arthroconidia
Which fungus is associated with a yeast form that resembles B.dermatitidis in spherule appearance?
Histoplasma capsulatum
Which fungal infection is systemic-fatal and predominantly affects immunocompromised individuals?
Penicillium marneffei
What is the mode of transmission of Mucormycosis caused by Zygomycota/Mucorales?
Inhalation of sporangiospores
What type of tinea infection affects the head?
Tinea capitis
Which organism's colony has a fluffy white appearance with a lemon yellow reverse on potato dextrose agar (PDA)?
Microsporum canis
Which of the following is a characteristic of Trichophyton rubrum?
Colony has a red reverse
What is a distinctive feature of Epidermophyton floccosum macroconidia?
Smooth and thin-walled
Which organism's colony is characterized as having a 'suede leather appearance'?
Epidermophyton floccosum
Which test is positive for Trichophyton mentagrophytes?
Hair baiting/penetration
Which fungal infection is most commonly associated with rhinocerebral zygomycosis in diabetic patients with ketoacidosis?
Lichtheimia infection
Which fungal colony is characterized by rapid growth, woolly colonies, and the presence of brown rhizoids connected by stolons?
Rhizopus
Which fungal infection is commonly associated with neutropenia and is the single most predisposing factor?
Aspergillus infection
Which fungal colony is described as having hyaline septate hyphae, dichotomously branched hyphae, and uniseriate or biseriate phialides?
Aspergillus
Which fungal infection is associated with meningitis, pulmonary disease, and septicemia, particularly in AIDS patients?
Cryptococcus neoformans infection
Which fungal colony is described as having a bright salmon pink color and resembling Cryptococcus neoformans?
Rhodotorula
Learn about colony morphology characteristics including mold form like daisy-like appearance and yeast form with cigar bodies and asteroid shapes. Explore details about Phaeohyphomycosis caused by darkly pigmented fungi such as Dreschlera spicifera, Alternaria, and Cladosporium.
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