Fungi

Question 1

They are

Answer 1

Eukaryotes
Multicellular (yeast is uni)
Diploid
Similar to bacteria but have nucleus and vacuole

Question 2

Heterotroph

Answer 2

excrete enzymes
absorb digestive products
some are spores some parasitic, some predators

Question 3

Morphology of Yeast and Hyphae

Answer 3

DRAW THESE

Question 4

Fillamentous

Answer 4

Multinucleate
Hyphae form mycellium
Non reproductive structures are called thallus (NOT PHALLUS)
moulds

Question 5

Hyphae

Answer 5

Chtin Wall
5-30um diameter
Grow from tip (Apical)
No fixed length
Branched
Cross walls (septa) have pores

Fruiting ones are mushrooms

Question 6

Moulds

Answer 6

mostly aerobes, major decomposers, mostly harmless necrotrophs but few are pathogenic biotrophs

Question 7

Yeast

Answer 7

Unicellular
Non fillamentous
Grow by budding
Grow by fission

Question 8

Yeast culture

Answer 8

Colonies on agar media
slower than bacteria growth
plasmids used in biotech

Question 9

Treating Fungals

Answer 9

Ergosterol not cholesterol in fungi
antifungals exploit this
Azoles inhibit ergosterol synthesis
Polyene opens pores nad bursts cell

Question 10

Reproduction

Asexula Condia Spores

Answer 10

released into air

Question 11

Reproduction

Asexual Sporangiospores

Answer 11

multiple in a sac, released into air

Question 12

Reproduction

Sexual Zygomycetes

Answer 12

fusion of 2 hyphae,

thick resistant wall

Question 13

Reproduction

Sexual Asocmycetes

Answer 13

Spores in a sac
8 ascospore per ascus
bursts into air

Question 14

Reproduction

Sexual Basidomycetes

Answer 14

4 Basidiospore per basidium (spec cell)

Released into air @ maturity

Question 15

Products of Fungi

Answer 15

Mycotoxin
Aflatoxins- liver damage
Antibiotics- penicillin
Quorn and food stuff
Amanita phalloides- death cap
Psilocybin MAGIC

Question 16

Coenocytic

Answer 16

Fungal mycellia which lack septa in hyphae

acts as a single coordinated unit