fungi

Question 1

domain characteristics

Answer 1

eukaryotic, sporebearing
absorptive nutrition
sexual and asexual reproduction
contain chitin, lack chlorophyll

Question 2

taxonomy

Answer 2

6 phyla

Question 3

phylum chytridiomycota: description

Answer 3

primitive, simplest
parasitic forms
mostly aquatic, like warm, slightly acidic environments
microscopic, flagellated

Question 4

phylum zygomycota: description

Answer 4

“refrigerator molds”
live in decaying plant and animal matter, can survive at low temperatures
usually asexual reproduction: spore formation, budding
sexual reproduction: fusion to form zygospore

Question 5

phylum glomeromycota: description

Answer 5

symbiosis with plants
- plant provides carbs for fungus

Question 6

glomeromycota: arbuscular vs. ectomycorrhizae

Answer 6

arbuscular: go through root cells
ectomycorrhizae: surround root cells

Question 7

basidiomycota (club fungi) examples

Answer 7

toadstools, shelf fungi, puffballs, mushrooms
- armillaria ostoyea: largest organism

Question 8

phylum basidiomycota: description

Answer 8

some are bioluminescent
- deterrent for predators
- attracts insects to disperse spores

Question 9

basidiomycota: human impact

Answer 9

toxins are hallucinogenic, some fata
ex) amanita phalloides: liver rupture, GI damage, have 3 toxins
- known as “death angel”

Question 10

phylum microsporidia: description

Answer 10

protist-like
infect insects, fish, humans
have a polar tube, which can be ejected
cause xenomas (growths)

Question 11

phylum ascomycota: description

Answer 11

largest phyla
red, brown, blue-green molds

Question 12

yeast

Answer 12

s. cerevisiae
reproduction: budding occurs at non-scarred regions

Question 13

genus aspergillus species

Answer 13

part of ascomycota
1. a. fumigatus
- allergies
2. a. oryzae
- production of certain foods

Question 14

claviceps purpura

Answer 14

plant parasite

Question 15

candida albicans

Answer 15

part of normal microbiota

Question 16

candida vaginitis transmission

Answer 16

disruption of normal microbiota
pH increases when lactobacillus is inhibited
antibiotics sometimes lead to this

Question 17

oropharyngeal candidiasis

Answer 17

thrush
common in newborns

Question 18

blastomyces dermatidis: transmission, tissue tropism, treatment

Answer 18

aka blastomycosis
cutaneous, pulmonary
found in soil
treated with antifungals

Question 19

histoplasma capsulazum: transmission and symptoms

Answer 19

inhalation of airborne spores in bird and bat droppings
flu-like symptoms

Question 20

pityriasis versicolor fungus

Answer 20

malassezia furfur

Question 21

pityriasis versicolor symptoms

Answer 21

discolored patches of skin
not harmful
very common

Question 22

tinea capitis fungus

Answer 22

trichophyton, microsporum

Question 23

tinea capitis symptoms

Answer 23

hair loss and inflammation

Question 24

tinea barbae disease and fungus

Answer 24

beard ringworm
trichophyton

Question 25

tinea corporis disease and fungus

Answer 25

body ringworm
trichophyton or microsporum
host capable of self-infection

Question 26

tinea cruris

Answer 26

groin infection
can be from tight-fitting clothes or friction

Question 27

tinea pedis disease and symptoms

Answer 27

athlete’s foot
itching, flaking

Question 28

tinea unguium disease, symptoms, fungus

Answer 28

trichophyton
fungal nails
discoloration, thickening`