Bio 108 Lab Test #3

Front 1

achlorophylous means ____.

Back 1

lacking chlorophyll (all fungi)

Front 2

fungi produce how?

Back 2

sexually and asexually

Front 3

the hyphae of most fungi have cell walls made up of ____.

Back 3

chitin

Front 4

what are septa?

Back 4

the walls that divide fungi into "cells"

Front 5

hyphae with septa are called

Back 5

septate hyphae

Front 6

fungi that do not have septa are called ________.

Back 6

coencytic hyphae

Front 7

how to fungi obtain their nutrients?

Back 7

through absorbtion

Front 8

the phyla part of fungi:

Back 8

- zygomycota
- ascomycota
- basidiomycota
- lichins

Front 9

define ascopore

Back 9

a spore borne in an ascus resulting from meiosis in ascomycetes

Front 10

ascus

Back 10

a membranous sac formed by the ascomycetes for the production and discharge of ascospores

Front 11

basidiospore

Back 11

a spore borne on a basidium resulting from meiosis in basidiomycetes

Front 12

basidium

Back 12

a specialized cell produced basidiomycetes for the production and discharge of basidiospores

Front 13

coencytic

Back 13

multinucleate hyphae that lack crosswalls

Front 14

conidium

Back 14

an asexual, non-motile spore borne externally, not within the sporangium

Front 15

dikaryotic

Back 15

a cell of hyphae of a certain septate fungi in which haploid, genetically different nuclei of 2 types are closely associated in pairs following plasmogamy

Front 16

diploid (2n)

Back 16

a cell containing 2 sets of chromosomes, one inherited from each parent

Front 17

endomycorrhiza

Back 17

a mycorrhiza which involves a green plant and a fungus, usually a zygomycete. the hyphae ramify throughout the root cortices of a plant, forming tree-like structures called abuscules and swollen cells called vesticles and extend out of the root and into the soil where they absorb nutrients

Front 18

ectomycorrhiza

Back 18

a mycorrhiza in which a fungus forms a sheath around the individual roots and rootlets. a common association with forest trees

Front 19

fruiting body

Back 19

a multicellular structure bearing reproductive cells. in ascomycetes it is called an ascocarp. in basidiomycetes it is called a basidiocarp

Front 20

gametangium

Back 20

a differenttiated multinucleate cell arising from a specialized hyphae that functions instead of discrete gametes

Front 21

haploid cell (n)

Back 21

a cell containing only one set of chromosomes

Front 22

heterokaryotic

Back 22

a cell or hyphae that contains genetically unfused haploid nuclei from different parents

Front 23

hymenium

Back 23

fertile layer bearing asci in ascomycetes; basidia in basidimycytes

Front 24

hypha

Back 24

a tubular cell or column of cells with a rigidwall of chitin or, in some fungi, cellulose. it is the basic structural unit in most fungi

Front 25

karyogamy

Back 25

the fusion of two nuclei

Front 26

meiospore

Back 26

a spore resulting from meiosis (ascospores and bisidiospores)

Front 27

mycelium

Back 27

a general and collective term refering to a mass of vegitative hyphae; the term usually excludes repruductive cells or structures

Front 28

mycorrhiza

Back 28

"fungus root". a symbiotic association involving a filamentous fungus and the root of a higher plant

Front 29

plasmogamy

Back 29

the fusion of the cytoplasm of cells from 2 individuals

Front 30

sporangium

Back 30

a hollow unicellular or multicellular structure in which spores are produced

Front 31

spore

Back 31

a microscopic propagule adapted to dispersal and establishment of the organism producing it

Front 32

zygosporangium

Back 32

a thick-walled resting sporangium arising from sexual conjugation between 2 mating stains (+ and -) gametangia. within the zygosporangium the diploid zygotes undergo meiosis to form haploid spores