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63 Cards in this Set

  • Front
  • Back
The study of fungi is called ____
MYCOLOGY
Fungi may be ____ (eg YEAST) or ____
unicellular - multicellular
Organisms in this kingdom are eukaryotes & tend to form long filaments of cells which are called ____
HYPHAE
When the fungus grows into an intertwined mass of hyphae which are visible to the naked eye its structure is referred to as a ____
MYCELIUM
The cross walls separating cells within a hypha are called ____
SEPTA
Fungi whose cells grow in one continuous structure without any septa but with many nuclei are referred to as ____
COENOCYTIC
They obtain their food from organic matter & are ____
HETEROTROPHS
They require less ____ than bacteria
NUTRIENTS
The majority live on dead organisms & are____ & able to break down tough materials such as wood lignins because of the large number of unusual ____ secreted
SAPROBES - EXOENZYMES
Although they can be both aerobic & facultatively anaerobic, they tend to grow on ____
SURFACES
They grow best in ____ conditions (pH 5) & survive dry conditions well
ACIDIC
Fungi are relatively unimportant ____ pathogens but virtually every important plant is attacked by one or more fungal pathogens
HUMAN
A fungal disease is called a ____
MYCOSIS
Most pathogens grow slowly & are long lasting or ____
CHRONIC
Fungal infections of the skin, hair & nails are called ____ while just below the skin they are referred to as ____ (____)
CUTANEOUS - SUBCUTANEOUS - DERMATOPHYTES
Infections in the tissues & organs are called ____ -often the result of spores inhaled into the ____
SYSTEMIC - LUNGS
Fungi are classified by the type of spores they produce through ____ ____
sexual reproduction
____ (single, large pigmented cells)
ZVGOSPORES
____ (spores in sac called an ascus)
ASCOSPORES
____ (four spores formed externally on a pedestal)
BASIDIOSPORES
____ OR FUNGI IMPERFECTI (a holding group -no spores found yet)
DEUTEROMYCETES
This is caused by pathogens from over 39 different fungal spp especially ____, ____, & ____
MICROSPORUM, TRICHOPHYTON and EPIDERMOPHYTON
They secrete ____ & have the ability to live on the upper skin layers, hair & nails (PROTEIN, KERATIN).
KERATINASES
Tinea. They tolerate ____ conditions.
dry
Tinea. They are spread by people/dogs/cats shedding hairs/cells onto ____ such as towels & can survive for years
FOMITES
Tinea. Appearance of the disease varies but skin NAILS & hair ____ are common.
TINEAS
Eg Tinea capitis (____) Tinea cruris (____) Tinea pedis (____) Tinea barbae (____ ____), Tinea corporis (____), Tinea unguium (____)
SCALP - GROIN - FEET - BARBER'S ITCH - BODY - NAILS
Tinea. None of these are serious diseases because they can't penetrate past the ____ ____ of the skin even with injury
STRATUM CORNEUM
Tinea. Diagnosis is by microscopic examination (____ & ____) & isolation on lab media (____ ____ ____).
SCRAPINGS & UV - DERMATOPHYTE TEST MEDIUM
Tinea. Treatment is usually the ____ application of ____, clotrimazole or oral ____
TOPICAL - TOLNAFTATE - GRISEOFULVIN
Candida albicans is an ____ which is normally present in the genitourinary tract, mouth & intestinal mucus membranes but its growth is suppressed by the ____
OPPORTUNIST - MICROFLORA
Agents which encourage its growth by interfering with the pH &/or bacterial flora would include ____, ____, & ____
ANTIBIOTICS, CONTRACEPTIVES & PREGNANCY
Patients that are ____, obese, diabetic, very young or old are likely to suffer from infections with this organism
IMMUNECOMPROMISED
Signs & symptoms in newborns would include ____ OVERGROWTH IN ____ ____, COATED TONGUE
WHITISH OVERGROWTH IN ORAL CAVITY
Women may suffer from vulvovaginal candidiasis (3/4 have at least one episode) with the signs & symptoms being … (6)
IRRITATION, INTENSE ITCHING, SORE REDNESS, YEASTY ODOR, THICK, YELLOW COTTAGE CHEESE
If it becomes systemic it can be ____
FATAL
Topical applications of ____ ____, ____ or oral ____
MICONAZOLEM CLOTRIMAZOLE, NYSTATIN or oral AMPHOTERICIN B
Pneumocystis Pneumonia. This disease was rare (100 cases/year) before the advent of AIDS (20,000+/year) as it is an opportunist found in the ____
lungs
Pneumocystis Pneumonia is caused by a microbe (respiratory system) called ____ ____
PNEUMOCYSTIS CARINII
Pneumocystis carinii. It has characteristics of both a ____ & a ____ & possesses a complex life cycle
FUNGUS & PROTOZOAN
Pneumocystis Pneumonia. Other people that are susceptible to the disease include ____ ____
CANCER PATIENTS
Pneumocystis Pneumonia. Treatment is ____ - ____
TRIMETHOPRIM -SULFAMETHOXAZOLE
Histoplasmosis. A systemic fungus of the ____ system found throughout the world
RESPIRATORY
Histoplasmosis. Mainly in the US States of Iowa, Minnesota, Missouri, Alabama; __% inhabitants of these states have Ab to this organism
75%
Histoplasmosis. ____ serious (50 deaths/year)
Rarely
Histoplasmosis. Grows in fecally-enriched ____ (____ and ____ droppings) filamentously & then ____ are inhaled into the lungs
soils - bird and bat - conidia
Histoplasmosis. The ____-like growth in the lungs causes a mild ____ infection
yeast - respiratory
Histoplasmosis. The X-ray of Histoplasmosis lung lesions resembles that of ____ diagnosis by __&__ & ____ ____ test
TB - S&S - complement fixation
Histoplasmosis. Treatment = ____ or ____
Amphotericin B or Ketoconazole
Coccidioidomycosis. A systemic fungus called ____ ____, which is found mainly in the American southwest, South America & Mexico causes __-__ US deaths per year
Coccidioides immitis - 50-100
Coccidioidomycosis. Another common name for it is ___ ____ VALLEY FEVER. Half of all experimental subjects tested in CA are +VE for a ____ ____ test!
SAN JOAQUIN - diagnostic skin
Coccidioidomycosis. it grows as filaments in ____, ____ soils which release ____
DRY, ALKALINE - ARTHROSPORES
Coccidioidomycosis. They are ____-borme & abundant in ____
wind - aerosols
Coccidioidomycosis. They germinate in lung tissue producing thick walled bodies called ____
SPHERULES
Coccidioidomycosis. The following signs & symptoms occur ____ PAIN, ____, ____, ____ LOSS
CHEST PAIN, FEVER, COUGHING, WEIGHT LOSS
Coccidioidomycosis. Recovery occurs within a few ____ even without ____
weeks - treatment
Coccidioidomycosis. Diagnosis can be tricky because of its resemblance to ____
TB
Coccidioidomycosis. Microbial examination of ____/____ & isolation & growth on ____ ____
tissues/fluids - lab media
Coccidioidomycosis. Treatment includes____ for months in serious cases
AMPHOTERICIN B
Fungal pathogens of plants can produce ____ which are ingested by humans
toxins
Claviveps purpurea a smut infection of ____ causes ergot poisoning
RYE
This was a common happening during the ____ ____ producing ____, twitching of the extremities, restricted blood flow & gangrene (Saint Vitus' dance)
MIDDLE AGES - HALLUCINATIONS
Aspergillus flavus a common mold, grows on ____ producing ____ which is a potent ____ ____
PEANUTS - AFLATOXIN - LIVER CARCINOGEN