Lecture 7

Question 1

What domain is fungi in?

Answer 1

eukarya

Question 2

Are most fungi multicellular or unicellular? exception?

Answer 2

most are multicellular except yeast which is unicellylar

Question 3

Are fungi heterotrophs or autotrophs?

Answer 3

heterotrophs

Question 4

How many fungi species are known?

Answer 4

99,000

Question 5

What is the common single-celled yeast called? (budding yeast)

Answer 5

saccharomyces cerevisiae

Question 6

What is the range of size for fungi?

Answer 6

5 microns to 1 meter

Question 7

How do saprophytes or saprobes eat?

Answer 7

feed on dead tissue or organic waste

Question 8

What do symbionts eat?

Answer 8

mutually beneficial relationship with another organism

Question 9

What are parasites?

Answer 9

feed on living tissue of host, can cause disease

Question 10

What is the cell wall made of for fungi?

Answer 10

chitin/glucan polysaccharide matrix with a glycoprotein and mannan-rich outer layer

Question 11

What is the cell membrane made of for fungi?

Answer 11

phospholipid bilayer

Question 12

What organelles do fungi have? (5)

Answer 12

1) nucleus
2) mitochondria
3) ER
4) Golgi
5) vacuole

Question 13

How can you see a yeast cell strucutre?

Answer 13

TEM

Question 14

Are most yeast in the mold or yeast form?

Answer 14

mold

Question 15

What is another name for mold form?

Answer 15

filamentous

Question 16

What is a single fungal filament?

Answer 16

hypha

Question 17

What is more than one hypha?

Answer 17

hyphae

Question 18

What is a collection of hyphae?

Answer 18

mycelium

Question 19

What contains spores which are dispersed for reproduction?

Answer 19

fruiting body

Question 20

What is the difference between septate and aseptate?

Answer 20

septate has separation between nuclei and in aseptate there is no separation between nuclei

Question 21

What does coenocytic mean?

Answer 21

aseptate

Question 22

What are the 2 phyla of yeast?

Answer 22

ascomycota and basidiomycota

Question 23

What is dimorphic fungi?

Answer 23

has both yeast and mold form

Question 24

What is lovastatin?

Answer 24

lowers cholesterol and is produced by fungi

Question 25

How do candida albicans infections work?

Answer 25

usually c. albicans live harmlessly in the gut and urogenital tract, but overgrowth can lead to disease like thrush, yeast infection, and bloodstream infections

Question 26

What is a dikaryon?

Answer 26

two nuclei

Question 27

How do filamentous fungi (mushrooms) reproduce?

Answer 27

dikaryon nuclei fuse and undergo meiosis and produce haploid spores

Question 28

When haploid spores germinate what do they form? filamentous fungi (mushrooms)

Answer 28

hyphae

Question 29

When hyphae grow longer to produce mycelia what is it through? filamentous fungi (mushrooms)

Answer 29

vegetative growth

Question 30

What differentiates into the fruiting body? filamentous fungi (mushrooms)

Answer 30

dikaryon

Question 31

How does budding yeast reproduce?

Answer 31

can do sexual and asexual (mitosis and meiosis)

Question 32

What are the two mating types for budding yeast?

Answer 32

"a" and alpha

Question 33

How do the gametes sense opposite mating types?

Answer 33

pheromones

Question 34

What is a budding yeast gamete called?

Answer 34

shmoos

Question 35

When does budding yeast do sexual reporduction?

Answer 35

when environmental conditions are right