fungi and lichen lab quiz

Question 1

fungi relationships

Answer 1

chytridiomycota - zygomycota

basidiomycota - ascomycota

Question 2

alternation of generation

Answer 2

spore producing - gamete producing - spore producing

Question 3

perfect fungi

Answer 3

sexual and asexual reproduction

Question 4

in perfect fungi, when does sexual reproduction occur?

Answer 4

in response to adverse environment: in order to increase genetic diversity / natural selection

Question 5

homothallic

Answer 5

both mating types are in SAME mycelium, allowing self fertilization

Question 6

heterothallic

Answer 6

requires compatible mycelia to reproduce sexually

Question 7

what is a lichen?

Answer 7

symbiotic relation between fungal partner and photosynthetic partner

Question 8

fungal partner =

Answer 8

mycobiont

Question 9

photosynthetic partner =

Answer 9

photobiont

Question 10

mycobiont produces a _____…

Answer 10

thallus: houses photobiont

Question 11

3 kinds of thalli

Answer 11

foliose
crustose
fruticose

Question 12

foliose

Answer 12

leaflife, adhere to substrate loosely

Question 13

crustose

Answer 13

tightly embedded, no lower cortex

Question 14

fruticose

Answer 14

no distinct top or bottom
(round, upright)

Question 15

lichen: sexual reproduction

Answer 15

tiny spores are produced within ascus

Question 16

lichen: asexual reproduction

Answer 16

fragments of thallus containing mycobiont AND photobiont separate and form new lichen