Basic Mycology: Structure and Growth

What is the main component of the fungal cell wall?

Chitin

Which of the following fungi induce a pyogenic response in the host?

Aspergillus, Mucor, and Sporothrix

What is the effect of amanitin on the host cell?

Inhibition of RNA polymerase

What is the characteristic of yeast reproduction?

Budding with unequal-sized daughter cells Signup and view all the answers

At which temperature do some fungi exist as molds?

Room temperature (25°C) Signup and view all the answers

What is the characteristic of the yeast form of Paracoccidioides brasiliensis?

Single, broad-based bud and thick, refractile wall Signup and view all the answers

Which of the following is a predisposing factor for Candida albicans infection?

Altered skin and mucous membrane Signup and view all the answers

How is Candida albicans typically transmitted?

Part of the normal flora of skin, mucous membranes, and GI tract Signup and view all the answers

What is the common location of skin lesions in Candida albicans infection?

Moisture-damaged skin Signup and view all the answers

Which of the following fungal infections is commonly seen in infants?

Thrush Signup and view all the answers

What is the purpose of using KOH in a microscopic examination of a fungal sample?

To visualize fungal structures Signup and view all the answers

What is the mechanism of action of Amphotericin B?

Binding to fungal cell membranes at the site of ergosterol Signup and view all the answers

What is the purpose of using Sabouraud's agar in fungal cultures?

To allow for the growth of slower-growing fungi Signup and view all the answers

What is the type of hypersensitivity response caused by the inhalation of Aspergillus fumigatus spores?

IgE-mediated immediate hypersensitivity response Signup and view all the answers

What is the mechanism of action of Echinocandins?

Inhibiting the synthesis of D-glucan Signup and view all the answers

What is the characteristic of Candida albicans that distinguishes it from other Candida species?

Germ tube production Signup and view all the answers

What is the primary mode of transmission of Cryptococcus neoformans?

Inhalation of airborne yeast cells Signup and view all the answers

What is the characteristic of Cryptococcus neoformans that makes it a significant pathogen?

Its heavily encapsulated yeast Signup and view all the answers

What is the purpose of the skin test in diagnosing Candida infections?

To determine the competency of cell-mediated immunity Signup and view all the answers

What is the characteristic of microscopic examination of tissue in Candida infections?

Reveals gram-positive yeast Signup and view all the answers

What is the characteristic of the hyphae of Aspergillus fumigatus?

Mold with septate hyphae that branch at V-shaped angle Signup and view all the answers

What is the primary habitat of Aspergillus fumigatus?

Soil Signup and view all the answers

Which patients are more susceptible to invasive disease caused by Aspergillus fumigatus?

Immunocompromised patients Signup and view all the answers

What is the characteristic of the hyphae of Mucor and Rhizopus species?

Molds with nonseptate hyphae that typically branch at 90-degree angle Signup and view all the answers

What is the primary site of infection in patients with mucormycosis?

Sinuses and surrounding tissue Signup and view all the answers

What is the purpose of Histoplasmin in laboratory diagnosis?

To determine the incidence of infection Signup and view all the answers

What is the mode of transmission of Sporothrix schenckii?

Puncture wounds caused by rose thorns and other sharp objects Signup and view all the answers

What is the characteristic of Coccidioides immitis?

All of the above Signup and view all the answers

What is the purpose of Coccidioidin in laboratory diagnosis?

To determine the incidence of infection Signup and view all the answers

What is the disease caused by Histoplasma capsulatum?

Histoplasmosis Signup and view all the answers

What is the primary source of nutrition for dermatophytes?

Keratin Signup and view all the answers

What is the characteristic of dermatophytes that allows them to infect human skin?

Production of extracellular enzymes Signup and view all the answers

What is the term used to refer to a variety of lesions of skin or scalp caused by dermatophytes?

Tinea Signup and view all the answers

Which of the following is a type of cutaneous mycoses caused by dermatophytes?

All of the above Signup and view all the answers

What is the habitat of dermatophytes?

Human skin Signup and view all the answers

What is the mode of transmission of dermatophytes?

Direct contact with skin scales Signup and view all the answers

What is the term used to describe the fungal infection of the nail?

Onychomycosis Signup and view all the answers

What is the purpose of clipping the nail for culture in dermatophyte infections?

To obtain a sample of the infected tissue Signup and view all the answers

Which of the following is a type of dermatophyte that causes cutaneous mycoses?

All of the above Signup and view all the answers

What is the term used to describe the fungal infection caused by Sporothrix schenckii?

Sporotrichosis Signup and view all the answers

Basic Mycology: Structure and Growth

Questions and Answers

What is the main component of the fungal cell wall?

Which of the following fungi induce a pyogenic response in the host?

What is the effect of amanitin on the host cell?

What is the characteristic of yeast reproduction?

At which temperature do some fungi exist as molds?

What is the characteristic of the yeast form of Paracoccidioides brasiliensis?

Which of the following is a predisposing factor for Candida albicans infection?

How is Candida albicans typically transmitted?

What is the common location of skin lesions in Candida albicans infection?

Which of the following fungal infections is commonly seen in infants?

What is the purpose of using KOH in a microscopic examination of a fungal sample?

What is the mechanism of action of Amphotericin B?

What is the purpose of using Sabouraud's agar in fungal cultures?

What is the type of hypersensitivity response caused by the inhalation of Aspergillus fumigatus spores?

What is the mechanism of action of Echinocandins?

What is the characteristic of Candida albicans that distinguishes it from other Candida species?

What is the primary mode of transmission of Cryptococcus neoformans?

What is the characteristic of Cryptococcus neoformans that makes it a significant pathogen?

What is the purpose of the skin test in diagnosing Candida infections?

What is the characteristic of microscopic examination of tissue in Candida infections?

What is the characteristic of the hyphae of Aspergillus fumigatus?

What is the primary habitat of Aspergillus fumigatus?

Which patients are more susceptible to invasive disease caused by Aspergillus fumigatus?

What is the characteristic of the hyphae of Mucor and Rhizopus species?

What is the primary site of infection in patients with mucormycosis?

What is the purpose of Histoplasmin in laboratory diagnosis?

What is the mode of transmission of Sporothrix schenckii?

What is the characteristic of Coccidioides immitis?

What is the purpose of Coccidioidin in laboratory diagnosis?

What is the disease caused by Histoplasma capsulatum?

What is the primary source of nutrition for dermatophytes?

What is the characteristic of dermatophytes that allows them to infect human skin?

What is the term used to refer to a variety of lesions of skin or scalp caused by dermatophytes?

Which of the following is a type of cutaneous mycoses caused by dermatophytes?

What is the habitat of dermatophytes?

What is the mode of transmission of dermatophytes?

What is the term used to describe the fungal infection of the nail?

What is the purpose of clipping the nail for culture in dermatophyte infections?

Which of the following is a type of dermatophyte that causes cutaneous mycoses?

What is the term used to describe the fungal infection caused by Sporothrix schenckii?

More Quizzes Like This

Medical Microbiology: Mycology Lecture

Mycology: Study of Yeasts, Molds, and Macrofungi

Biology: Mycology and Fungi

Microbiology: Introduction to Fungi