18 Questions
What is the main difference between yeast and mold in terms of growth conditions?
Yeast grows best at 37 degrees Celsius, while mold thrives at 21-25 degrees Celsius.
Which term describes the chain of elongated yeast cells?
Pseudohyphae
What is the purpose of the Aerial part of the mold's Thallus structure?
Support reproduction
What is the difference between Monomorphic and Polymorph fungi?
Monomorphic fungi have one form, while Polymorphic fungi have two distinct forms in their life cycle.
What is the incubation period for fungi cultures before examination in the laboratory?
1 week to several months
Which term refers to the entire body of a mold that is examined under a microscope for identification purposes?
Thallus
What is a characteristic feature of fungi?
Rigid cell walls for maintaining shape and attachment
Why are fungi considered achlorophyllous?
Inability to synthesize their own food
Which characteristic distinguishes fungi from bacteria in terms of habitat?
Prefer natural habitats like soil and organic debris
Why are fungi described as chemotrophic?
They secrete enzymes to degrade organic substrates
Which type of fungi infection does not initiate an immune response due to lack of cellular response?
Superficial infection
What role does the cell wall play in fungi infections?
Maintains shape and facilitates attachment
What staining method is used to detect the presence of Cryptococcus neoformans in cerebrospinal fluid (CSF)?
India ink method
Which type of stain is commonly used to check the presence of intracellular yeast in bone marrow aspirate or peripheral blood smear?
Wright stain
What is the purpose of using Lactophenol Cotton Blue (LPCB) in microscopy for teasing and scotch tape preparations?
To visualize fungal elements
Which staining method is used to identify all fungal elements appearing black?
Gomori's Methenamine Silver Stain
For which purpose is Wood's light typically used in a clinical setting?
Determining prognosis of a patient
Which category of antifungal agents inhibits chitin and DNA synthesis?
Polyoxin compound
Test your knowledge on various microbiology techniques such as Gram staining, KOH digestion, Calcofluor white staining, and Giemsa/Wright stain. Learn about the different methods used for detecting bacteria, fungi, and yeast in clinical specimens.
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