Mass of hyphae constructing the thallus

Dematiaceous hyphae is also known as the dark colored hyphae, on the other hand , clear hyphae is known as?

Which of the following statement below is NOT true regarding , Sabouraud dextrose agar (SDA).

It is used to demonstrate germ tube production by the yeast Candida albicans

It is used for growth of Cryptococcus neoformans

It is used to recover dermatophytes

Direct exam method used to dissolve nonfungal materials in skin, hair, and nail samples

Infection of the scalp Caused by Microsporum and Trichophyton

Tinea is a mycotic organism?

Tinea is the medical term for the infection/s caused by dermatophytic mycotic organism?

Histoplasma capsulatum does not have any capsule

Histoplasma capsulatum and Sporothrix schenckii are both dimorphic.

Which of the following organism below is considered to be achlorophyllous

Which pair below is correctly matched:

Examine the cell wall below: Given the key elements in this cell wall, this belongs to a:

Displayed below are spores of the bacteria Clostridium tetani (blue background), and of a fungus (black background). Which statements below is false regarding spores.

Perfect fungus characteristic refers to the ability of the organism to reproduce both via sexual and asexual method.

Both H. capsulatum and C. neoformans can be acquired via bird droppings

Most systemic mycoses affects primarily the lungs.

Opportunistic fungi usually have hyaline hyphae.

This is the temperature of the refrigerator at which all specimens submitted for viral recovery regardless of source should be transported.

If Inoculation of the specimen into tissue culture media will exceed 5 days this is the temperature the spcimen should be at:

It is a technique that employs single-stranded , complementary nucleic acid probes for detection of human immunodeficiency virus (HIV) in the blood of seronegative individuals

Classify : Picronavirus

Classify : Coronovirus

Classify : Paramyxovirus

Classify : Orthomyxovirus

Causative agent of AIDS:

Causative agent of HEPATITIS B:

Causative agent of HEPATITIS A:

Causative agent of DENGUE:

Causative agent of MUMPS

Causative agent of Influenza type A

Causative agent of Influenza type B:

It causes a primary disease (chicken pox) and a recurrent disease (shingles)

The preferred pH range for bacterial growth

The preferred pH range for Mycotic/fungal growth

The pH range/value which is considered to be Neutral is

The pH range/value which is considered to be Acidic.

The pH range/value which is considered to be Alkaline.

Do some fungi produce substances that may kill bacteria?

Which of the following organism below is considered to be achlorophyllous

Which statement below is not true regarding fungi.

Fungi are said to have no true cell wall but has true roots.

Fungi are much closely associated to _______ in terms of structure

Which pair below is correctly matched:

Examine the cell wall: Given the key elements in this cell wall, this belongs to a

The cell wall content of a bacteria is mostly composed of

Displayed below are spores of the bacteria Clostridium tetani (blue background), and of a fungus (black background). Which statements below is false regarding spores

What type of hyphae is responsible for nutrient absorption and stability

The ability of an organism to grow in more than one form under different environmental conditions

In Lactophenol cotton blue staining, what part of the mixture acts as the mounting agent.

Classify the following condition/disease as to the choices given: Tinea nigra

Classify the following condition/disease as to the choices given: Mycotic Otitis Externa

Classify the following condition/disease as to the choices given: Biegel's disease

Classify the following condition/disease as to the choices given: Presents with patchy "blotchy" desquamating rash.

1porothrix schenkii is a dimorphic fungus, same as Candida albicans.

Madura's foot is a condition caused by a fungal specie only.

JOCK ITCH IS otherwise known :

Trichophyton that has a distinct colony color of Port wine to deep violet.

HALLMARK: MACROCONIDIA WITH TUBERCULATE-FINGER LIKE PROJECTIONS

HALLMARK: INTRACELLULAR YEAST CELLS, MOSTLY RESISTANT TO PHAGOCYTIC ACTION OF MACROPHAGES

HALLMARK: COB-WEB LIKE GROWTH OF MYCELIUM.

HALLMARK: INTRACELLULAR YEAST CELLS, MOSTLY RESISTANT TO PHAGOCYTIC ACTION OF MACROPHAGES.

HALLMARK: MULTINUCLEATED YEAST CELLS WITH MLTIPLE BUDDING.

HALLMARK: BROAD BASED BUDDING YEAST CELL, LOLLIPOP APPEARANCE OF CONIDIA.

What type of WBC is mostly responsible for the defense against opportunistic fungi (dissimenated form).

Spelunker's disease is otherwise known as histoplasmosis. What is Spelunking?

Spherules and Endospores are often seen in the mycotic elements of this fungi.

Which of the ff. Opportunistic fungi is strictly exogenous in nature:

Microscopic appearance of this fungi is often confused with the amastigote form of L. donovani.

Darling's disease is otherwise known as Histoplasmosis. Who is Darling?

Histoplasma capsulatum and Sporothrix schenckii are both dimorphic.

Perfect fungus characteristic refers to the ability of the organism to reproduce both via sexual and asexual method.

Histoplasma capsulatum does not have any capsule.

1Both H. capsulatum and C. neoformans can be acquired via bird droppings.

Most systemic mycoses affects primarily the lungs.

. A bulldozer operator became ill while working on a new highway in the San Joaquin Valley. He developed chest pain, anorexia, headache and general malaise, and myalgia with fever. Chest X-ray showed pneumonic infiltrate and a single, well-defined nodule in the left lower lobe. His leukocyte count and sedimentation rate were slightly elevated. Although no fungus was seen in direct examination of a sputum specimen, processing included a culture on Sabouraud dextrose agar with chloram- phenicol and cycloheximide. Within 3 days at30°C,this culture produced moist, grayish growth, and white aerial mycelia began to develop (see Color Plate 30B). A lactophenol cotton blue wet mount of this organismisseeninColorPlate31•. Whatis the most likely identification of this fungus?

A 38-year-old male from Ohio presented to his physician with a mild influenzalike illness that included headache and malaise. His chest X-ray showed no infiltrates. His past medical history was unremarkable. He had no history of travel but reported recently cleaning the bell tower at his church, which was littered with bird excrement. The most likely agent causing his disease is

A 44-year-old gardener pricked herself with a rose thorn. A subcutaneous fungal infection characterized by the develop- ment of necrotic ulcers followed this direct inoculation of fungal spores into the skin. The causative fungus was cultured as a small yeast form at 35°C (see Color Plate 32 •) and as a mould at room temperature with delicate hyphae and conidia. This disease is

A yeastlike fungus was isolated from a sputum sample. No hyphae were produced on cornmeal agar with Tween 80. The isolate was negative for nitrate assimilation and positive for inositol assimilation and produced urease at 37°C. These findings are typical of

A 24-year-old Vietnamese refugee was seen at a clinic in Houston. His chief complaints were weight loss and fever. A complete blood count confirmed he was suffering from anemia as well. Multiple skin lesions were present on his arms, some of them draining pus. Gram stain of the pus revealed what appeared to be yeastlike cells. A culture of the pus grew a green mould at 22°C, which produced a red soluble pigment (see Color Plate 33«). A lactophenol cotton blue wet mount of this organism is seen in Color Plate 34«. The causative agent in this case is

A section of a lymph node stained with the Gomori silver and hematoxylin and eosin stains is shown in Color Plate 35 •. A lactophenol cotton blue wet mount of a mould that grew from this specimen is shown in Color Plate 36 •. Large, one- celled, smooth to tuberculate macroconi- dia and smooth or echinulate microconidia are typical of mycelial phase growth of

Which of the following types of Candida albicans infection is commonly acquired from an exogenous source?

In a direct examination of a KOH wet mountofanailspecimen, Epidermophyton floccosum could be detected as

The mould phase of the systemic fungus Blastomyces dermatitidis can be confused with

It is usually difficult or impossible to identify a fungal culture before it is mature. However, hyaline, septate hyphae, and a young conidiophore with a foot cell (see Color Plate 37B) and a swollen vesicle are excellent clues to the identification of

Zygomycetes are rapidly growing, airborne saprobes. In clinical specimens they

Trichophyton rubrum and T. mentagrophytes may be differentiated by the

Broad, coenocytic hyphae found in tissue would be most typical of infection with

A fungus infecting only skin and nails typically produces in culture

The most useful finding for prompt, presumptive identification of C. albicans is its

Identify the dimorphic fungus that typically has a tissue phase in which the large mother cells have one to a dozen narrow-necked buds and a slowly growing mycelial form with intercalary chlamydoconidia and coiled hyphae

Which of the following stains greatly enhances the visibility of fungi by binding to the cell walls, causing the fungi to fluoresce blue-white or apple green?

The formation of arthroconidia is not an important characteristic in the identification of

A black pigment produced by colonies growing on bird seed agar is due to

Which of the following fungi is not considered an opportunistic pathogen?

Observation of hyaline or dematiaceous hyphae is an early clue in the identifica- tion of common, airborne fungi. Which of the following genera contains species found as dematiaceous contaminants?

Which of the following fungi is most likely to be found as a common saprobe and as an agent of keratitis?

The microscopic identification of Pneumocystis jirovecii is based on the detection of

Fungi that undergo asexual reproduction are termed

Hyaline septate hyphae, branched or unbranched conidiophores, and multicelled banana-shaped conidia are characteristic of which of the following

Which of the following does not correctly describe the yeast Rhodotorula rubra?

. A 21-year-old male member of a university track team presents to student health services with a light brown circular lesion on his upper back. The agent most likely responsible for this condition is

Which of the following is likely to be found in clinical specimens as normal microflora and as clinically significant isolates?

A 4-year-old child's hair is falling out in patches. The hair fluoresces when subjected to the UV light from a Wood's lamp. When the hair is cultured, a white cottony mould grows at 25°C on potato dextrose agar. Microscopically, rare microconidia, septate hyphae, and terminal chlamydospores are seen. Macroconidia are absent. The mould fails to grow on polished rice grains. The causative agent is

In tissues infected with Histoplasma capsulatum

Blastomycosis

Coccidiodomycosis

Cryptococcosis

Histoplasmosis

Sporotrichosis

The cause of white piedra

The cause of black piedra

The cause of tinea nigra

The cause of tinea versicolor

A keratinophilic saprophyte

A cause of otomycosis

True hyphae and arthroconidia only

True hyphae, arthroconidia, and blastoconidia

Pseudohyphae, blastoconidia, and chlamydospores

Pseudohyphae and blastospores only

Blastospores only, without hyphae or pseudohyphae

Cryptococcus neoformans

Histoplasma capsulatum mentagrophytes

Pseudallescheria boydii

Trichophyton mentagrophytes