Microbiology Chapter 12 Flashcard

Unlock all answers in this set

Unlock answers
question
mycology
answer
the study of fungi
question
characteristics of fungi
answer
eukaryotic, multicellular except yeast, reproduce sexually and asexually, ave sterols in membranes, cell walls made of glucans, mannans and chitin
question
thallus
answer
body of the organism
question
hyphae
answer
appendages off the thallus
question
mycelium
answer
a mass of hyphae
question
septate
answer
individual cells are divided by septae which are porous so the cytoplasm is continuous
question
coenocytic
answer
lack a septum
question
dimorphic fungi
answer
two forms; yeast at 37 and mold at 25
question
sporangiospores
answer
asexual; collection of spores in a cluster, spores come off of the sporangiophore
question
conidiospores
answer
asexual; conidia are the spores stuck together in a sting connected to the conidiopher (stem)
question
blastoconidia
answer
asexual; have pseudohypha with blastoconidia spores on the tips
question
chlamydoconidia
answer
asexual; pseudohyphal growth falls off the clamydoconidium
question
plasmogamy
answer
haploid donor cell penetrates cytoplasm of recipient cell
question
karyogamy
answer
the nuclei fuse and form a diploid zygote
question
meiosis
answer
diploid nuleus produces haploid nucleu to start all over
question
zygospore
answer
sexual; fusion of haploid cells
question
ascospore
answer
sexual; formed in a sac
question
basidiospores
answer
sexual; spores off main body of the fungus on pedestals (basidium)
question
zygomyota
answer
coenocytic; produce sporangiospores and zygospores; undergo conjugation
question
ascomycota
answer
septate hyphae; ascospores and conidiospores; sexual AND asexual spores; sac fungi
question
basidiomycota
answer
septate hyphae; basidispores and some conidiospores; club fungi; ex: cryptococcus neorormns causes systemic mycosis
question
anamorphs
answer
asexual spores only; ex: penicillium
question
systemic mycoses
answer
fungal infctions deep wihtin the body that affect many tissues and organs
question
subcutaneous
answer
fungal infections beneath the skin
question
cutaneous
answer
affect tissues such as hair, nails and skin
question
superficial
answer
localized on hair shafts and superficial skin cells
question
opportunistic
answer
cause by normal flora that if in the right circumstances cause a systemic dieas
question
economic effect of fungi
answer
foods, kills termites,
question
characteristics of protozoa
answer
unicellular, eukaryotic chemoheterotrophs
question
fission yeast
answer
reproduce by binary fission; used in experiments because they are haploid
question
budding yeasts
answer
reproduce by budding; leave a scar on parental cell; used for fermentation and bread
question
trophozoite
answer
vegetative form of a protozoa
question
asexual reproduction of protozoa
answer
fission, budding or schozogony
question
conjugation in protozoa
answer
'intimate contact' and macro and other micro from the cells fuse for recombination causing the cells to be 'fertilized'
question
archaezoa
answer
lack mitochondira and have flagella; ex: trichomonaas vaginalis and giardia
question
amoebozoa
answer
ex: entamoeba
question
Apicomplexa
answer
include plasmodium (malaria with mosquitos as intermediate) and cryptosporidium (waterborne and transmitted by fecal oral route)
question
Apicomplexa
answer
include plasmodium (malaria with mosquitos as intermediate) and cryptosporidium (waterborne and transmitted by fecal oral route)
question
Characteristics of helminths
answer
animalia; multicellular; obligate parasites; elaborate life cycles; reduced digestive system, reduced locomotion, reduced nervous system and complex reproduction
question
phyla of helminths
answer
platyhelminthes (flatworms) with trematodes and cestodes and nematoda (roundworms)
question
monoecious
answer
hermaphroditic with male and female reproductive systems in on animal
question
dioecious
answer
separate male and female
question
sexual dimorphism
answer
male and female look different; ex: pinworm
question
trematodes
answer
flukes; have oral and ventral suckers to attach, complex reproduction
question
cestode
answer
taprworm; has scolex to latch on to wall nd proglittids
question
proglottids
answer
segements with male and female parts that shed off tapeworm
question
humans as the definitive host
answer
beef tapeworm with cattle as intermediate
question
humans as the intermediat hose
answer
exhinococcus granulosus with the dogs, wolves and foxes as definitive
question
vector
answer
arthropods taht carry disease; ex: oxides cause lyme disease
question
transmission
answer
mechanical transmission; biological transmission-microbe multiplies in vector; and definitive host- microbes sexual reproduction in vector
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New