Introduction to Fungal Pathogens Flashcards
Fungi may reproduce by ____ and/or ____ means, and the nature reproduction is used in classification.
sexual; asexual
Like plants, fungi have _____, a feature which separates them from animals. They contain chitin (a material also found in the exoskeleton of insects) and also cellulose (a material found in plant matter).
rigid cell walls
Fungi also have a cell membrane inside of the cell wall which contains _____.
ergosterol
Fungal species may be subclassified as ____, _____, _____, or _____.
saprobes, symbionts, commensals, or parasites
_____ live upon dead and decaying organic matter.
Saprobes
_____ live upon another organism to the mutual advantage of both.
Symbionts
Like plants, fungi have rigid cell walls, a feature which separates them from animals. They contain ____ (a material also found in the exoskeleton of insects) and also _____ (a material found in plant matter).
chitin; cellulose
_____ live upon another organism with no detriment to the host.
Commensals
Colonies of yeast are usually ____ or ____ in appearance.
moist; mucoid
Fungi also have a ____ inside of the cell wall which contains ergosterol.
cell membrane
What is a sapbrobe?
fungi that lives upon dead and decaying organic matter
_____ live upon another organism with clear detriment to the host.
Parasites
Fungi occur in two basic growth forms:
- yeast
2. molds
What is a symbiont?
fungi that lives upon another organism to the mutual advantage of both
YEAST - a _____ growth form where the fungus reproduces via budding to form _____, or by dividing in half through fission.
unicellular; blastoconidia
What are Commensals?
fungi that live upon another organism with no detriment to the host
Parasites are?
fungi that live upon another organism with clear detriment to the host
Medically relevant yeast includes ____ and ____.
Cryptococcus neoformans; Candida albicans
MOLDS - a _____ growth form where the fungus reproduces via formation of _____.
filamentous; spores or conidia
The filamentous elements in mold are called ____.
hyphae
A mass of hyphae is referred to collectively as ____.
mycelium
Medically relevant molds include ____ and _____.
common dermatophytes; Aspergillosis
Pseudohyphae are simply ____; they do not have _____.
elongated yeast linked together like sausages; cytoplasmic connections between the compartments
_____ is an organism that often forms pseudohyphae.
Common Candida albicans