Fungi exist in what two forms?
Yeasts
Mold
Fungi have a cell membrane called:
What is it rich in?
plasmalemma, rich in sterols such as ergosterol
Fungi have a cell wall called:
What is it a combination of?
Chitin
Combination of glucose and amino groups
Most fungi acquire nutrients from dead/decaying organic material which makes them be considered...
saphrotrophs
Are fungi heterotrophic?
Yeet
What type of media is fungi grown on?
Sabourad Dextrose Agar
has an acidic pH which prevents growth of bacteria, promotes growth of fungi
Yeasts reproduce ___ via ___
asexually, via budding
Yeasts undergo what shift?
YM shift (yeast to mold shift)
dimorphism
Are molds or yeasts multicellular?
Molds
Molds have what structure?
hyphae
A mass of fungal hyphae is called:
mycelium
The hyphae may have cellular divisions called:
septa
If the hyphae extend ACROSS THE SURFACE of a medium they're considered:
vegetative or nutrient gathering hyphae
If the hyphae extend VERTICALLY AND PRODUCE REPRODUCTIVE STRUCTURES KNOWN AS 'fruiting bodies' they're considered:
Aerial hyphae
Fruiting bodies contain many...
Spores
How are molds spores spread from one area to another?
by the wind
How do we identify the mold?
On the appearance of the hyphae/fruiting body
color
texture
temperature
We use a ___ mount to identify yeasts
wet mount
What do yeasts look like when grown on Apgar?
moist creamy appearance
What do we prepare to observe molds?
a tape prep - done in the hood
Penicillium notatum
...
Aspergillus niger
...
Rhizopus stolonifere
...