ch 31 fungi Flashcards Preview

Bio 121 spring 2014 > ch 31 fungi > Flashcards

Flashcards in ch 31 fungi Deck (30):
1

yeasts

single cells

2

hyphae

network of tiny fillaments

3

chitin

a polysaccharide that strengthens the cell walls of fungus

4

septa

hypae are divided into cells by crosswalls, or septa

5

coenocytic fungi

consists of a continuous cytoplasmic mass having hundreds or thousands of nuclei

6

myceliem

interwoven mass of hyphae that infiltrates the material on which the fungus feeds.
maximises surface area

7

haustoria

specialized hyphae that fungi use to extract nutrients from , or excrete nutrients with, their host plants

8

mycorrhizae

mutual beneficial relationships between fungi and plant roots

9

ectomycorrhizae

form sheaths of hyphae over the surface of a root and typically grow inot extracellular spaces of the root cortex

10

arbuscular mychorrhizal fungi

extend branching hyphae through the root cell wall and into tubes formed by invagination

11

spores

haploid cells

12

plasmogamy

union of the cytoplasms of 2 parent mycelia

13

heterokaryogon

fused mycelium containing coexisiting, genetically different nuclei

14

dikaryotic

2 nuclie

15

karyogamy

haploid nuclei contained by both parents fuse, producing diploid cells

16

deuteromycetes

fungi lacking sexual reproduction

17

opisthokonts

clade, posterior fagellem

18

nucleariids

unicellular protists consits of amoebas that feed on algae and bacteria

19

chytrids

phylum chyrtridiomycota
lakes and soil
maybe responsible for the decline of amphibian pops

20

zygomycetes

phylum zygomycota
bread molds
know life cycle in lab and fig 31.12

21

zygosporangium

plasmogamy produces this structure in which karyogamy and then meiosis occur
2n

22

ascomycetes

phylum ascomycota
sac fungi

23

asci

produce spores

24

ascocarp

fruiting bodies, contain asci

25

conidia

asexual spores
produced externally at the tips of specialized hyphae called conidiospores

26

basidomycetes

phylum basidiomycota
club fungus

27

basidium

little pedistals

28

basidiocarp

fruiting bodies

29

lichens

a symbiotic association between a photosynthetic microorganism and a fungus in which millions of photosynthetic cells are held in a mass of fungal hyphae

30

mycosis

infection in an animal by a fungal parasite