Question 1

The term dematiaceous is used to describe

Accepted Answer

A) molds that have septate hyphae. 
B) molds that have pauciseptate hyphae. 
C) the presence of pigmentation within the hyphae or the spores. 
D) the absence of pigmentation within the hyphae or the spores. 
A) molds that have septate hyphae. 
B) molds that have pauciseptate hyphae. 
C) the presence of pigmentation within the hyphae or the spores. 
D) the absence of pigmentation within the hyphae or the spores.

Question 2

Match the fungus with its description. Choose from the following:
-Epidermophyton

Accepted Answer

A) Large spindle-shaped, rough-walled macroconidia with thick walls that contain 4 to 15 septa and small club-shaped microconidia 
B) predominate spherical, teardrop-shaped or club-shaped microconidia and smooth, club-shaped, thin-walled macroconidia with 8 to 10 septa borne singly at the terminal ends of hyphae or on short conidiophores. 
C) numerous smooth, thin-walled, club-shaped, multiseptate macroconidia, which are rounded at the tip and are borne singly on a conidiophore or in groups of two or three, no microconidia, and numerous chlamydoconidia.d.spherical, teardrop-shaped microconidia and rough, club-shaped, thick-walled macroconidia with 8 to 10 septa borne on short conidiophores. 
A) Large spindle-shaped, rough-walled macroconidia with thick walls that contain 4 to 15 septa and small club-shaped microconidia 
B) predominate spherical, teardrop-shaped or club-shaped microconidia and smooth, club-shaped, thin-walled macroconidia with 8 to 10 septa borne singly at the terminal ends of hyphae or on short conidiophores. 
C) numerous smooth, thin-walled, club-shaped, multiseptate macroconidia, which are rounded at the tip and are borne singly on a conidiophore or in groups of two or three, no microconidia, and numerous chlamydoconidia.d.spherical, teardrop-shaped microconidia and rough, club-shaped, thick-walled macroconidia with 8 to 10 septa borne on short conidiophores.

Question 3

Laboratories that have a high incidence of dimorphic fungi recovered from blood specimens should use which sytem of recovery?

Accepted Answer

A) An automated blood culture system 
B) The lysis-centrifugation system 
C) Filteration through a 0.45-µm membrane filter 
D) A biphasic blood culture system 
A) An automated blood culture system 
B) The lysis-centrifugation system 
C) Filteration through a 0.45-µm membrane filter 
D) A biphasic blood culture system

Question 4

Arthroconidia are produced by

Accepted Answer

A) hyphae fragmentation through the points of septation. 
B) the rounding up and enlargement of the terminal cells of the hyphae in which there is a concentration of protoplasm and nutrient material. 
C) the union of two matching types of Zygomycetes. 
D) ascocarps that are multiplied by binary fission. 
A) hyphae fragmentation through the points of septation. 
B) the rounding up and enlargement of the terminal cells of the hyphae in which there is a concentration of protoplasm and nutrient material. 
C) the union of two matching types of Zygomycetes. 
D) ascocarps that are multiplied by binary fission.

Question 5

Optimal recovery of filamentous fungi from blood specimens requires

Accepted Answer

A) an automated blood culture system. 
B) the lysis-centrifugation system. 
C) filteration through a 0.45-µm membrane filter. 
D) a biphasic blood culture system. 
A) an automated blood culture system. 
B) the lysis-centrifugation system. 
C) filteration through a 0.45-µm membrane filter. 
D) a biphasic blood culture system.

Question 6

A mold that has septate hyphae, conidia in clusters, and no pigment would likely belong to which group of fungi?

Accepted Answer

A) Alternaria 
B) Acremonium 
C) Cladosporium 
D) Microsporum 
A) Alternaria 
B) Acremonium 
C) Cladosporium 
D) Microsporum

Question 7

The process of reproduction in yeast that begins with a weakening and outpouching of the yeast cell wall and then formation of a cell wall septum between the mother and daughter yeast cells is called

Accepted Answer

A) binary fission. 
B) unisexual division. 
C) budding. 
D) outpouch germing. 
A) binary fission. 
B) unisexual division. 
C) budding. 
D) outpouch germing.

Question 8

The term hyaline is used to describe

Accepted Answer

A) molds that have septate hyphae. 
B) molds that have pauciseptate hyphae. 
C) the presence of pigmentation within the hyphae or the spores. 
D) the absence of pigmentation within the hyphae or the spores. 
A) molds that have septate hyphae. 
B) molds that have pauciseptate hyphae. 
C) the presence of pigmentation within the hyphae or the spores. 
D) the absence of pigmentation within the hyphae or the spores.

Question 9

Macroconidia can be defined as

Accepted Answer

A) microconidia that have swollen and are ready to produce hyphae. 
B) large, usually multiseptate and club- or spindle-shaped spores. 
C) large elbow-shaped rough-walled spores. 
D) large, ribbonlike hyphae with phialides. 
A) microconidia that have swollen and are ready to produce hyphae. 
B) large, usually multiseptate and club- or spindle-shaped spores. 
C) large elbow-shaped rough-walled spores. 
D) large, ribbonlike hyphae with phialides.

Exam 47: Laboratory Methods in Basic Mycology

The term dematiaceous is used to describe

Match the fungus with its description. Choose from the following: -Epidermophyton

Laboratories that have a high incidence of dimorphic fungi recovered from blood specimens should use which sytem of recovery?

Arthroconidia are produced by

Optimal recovery of filamentous fungi from blood specimens requires

A mold that has septate hyphae, conidia in clusters, and no pigment would likely belong to which group of fungi?

The process of reproduction in yeast that begins with a weakening and outpouching of the yeast cell wall and then formation of a cell wall septum between the mother and daughter yeast cells is called

The term hyaline is used to describe

Macroconidia can be defined as

Microbial Taxonomy

Bacterial Genetics Metabolism and Structure

Host-Microorganism Interactions

Laboratory Safety

Specimen Management

Role of Microscopy

Traditional Cultivation and Identification

Nucleic Acid-Based Analytic Methods for Microbial Identification and Characterization

Immunochemical Methods Used for Organism Detection

Serologic Diagnosis of Infectious Diseases

Principles of Antimicrobial Action Resistance

Laboratory Methods and Strategies for Antimicrobial Susceptibility Testing

Staphylococcus, Micrococcus, and Similar Organisms

Streptococcus, Enterococcus, and Similar Organisms

Bacillus and Similar Organisms

Listeria, Corynebacterium, and Similar Organisms

Erysipelothirix, Lactobacillus, and Similar Organisms

Nocardia, Streptomyces, Rhodococcus, Oerskovia, and Similar Organisms

Enterobacteriaceae

Acinetobacter, Stenotrophomonas, and Other Organisms

Pseudomonas, Burkholderia, and Similar Organisms

Achromobacter, Rhizobium, Ochrobactrum, and Similar Organisms

Chryseobacterium, Sphingobacterium, and Similar Organisms

Alcaligenes, Bordetella Nonpertussis, Comamonas, and Similar Organisms

Vibrio, Aeromonas, Plesiomonas Shigelloides, and Chromobacterium Violaceum

Sphingomonas Paucimobilis and Similar Organisms

Moraxella

Eikenella Corrodens and Similar Organisms

Pasteurella and Similar Organisms

Actinobacillus, Kingella, Cardiobacterium, Capnocytophaga, and Similar Organisms

Haemophilus

Bartonella and Afipia

Campylobacter, Arcobacter, and Helicobacter

Legionella

Brucella

Bordetella Pertussis and Bordetella Parapertussis

Francisella

Streptobacillus Moniliformis and Spirillum Minus

Neisseria and Moraxella Catarrhalis

Overview and General Considerations

Laboratory Considerations

Mycobacteria

Obligate Intracellular and Nonculturable Bacterial Agents

Cell Wall-Deficient Bacteria: Mycoplasma and Ureaplasma

The Spirochetes

Laboratory Methods for Diagnosis of Parasitic Infections

Laboratory Methods in Basic Virology

Bloodstream Infections

Infections of the Lower Respiratory Tract

Upper Respiratory Tract Infections and Other Infections of the Oral Cavity and Neck

Meningitis and Other Infections of the Central Nervous Systems

Infections of the Eyes, Ears, and Sinuses

Infections of the Urinary Tract

Genital Tract Infections

Gastrointestinal Tract Infections

Skin, Soft Tissue, and Wound Infections

Normally Sterile Body Fluids, Bone and Bone Marrow, and Solid Tissues

Laboratory Physical Design, Management, and Organization

Quality in the Clinical Microbiology Laboratory

Infection Control

Sentinel Laboratory Response to Bioterrorism New

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