fungi Flashcards
structure: what are 4 ways fungi is described as?
- heterophobic
- eukaryotic
- filamentous
- chitin
structure: What does heterotrophic mean?
nutrition obtained by ingesting organic matter
structure: what does eukaryotic mean?
cell contains a nucleus and other organelles surrounded by membrane
structure: what does filamentous mean?
made up of long thread-like, rod- like structures
structure: what does chitin mean?
hard and tough natural material made from glucose molecules joined together
growth: How do they reproduce assexually?
by budding, fragmentation or producing spores
growth: how does budding reproduction work?
occurs when parent cells produce one more projections called buds which later develop and detach to grow individually
growth: how does fragmentation reproduction work?
occurs when hyphae dry out and shatter releasing individual cells that act like spores
growth: how does producing spores for reproduction work?
they are produced by one parent only and are genetically identical
growth: how does sexual reproduction work with fungi?
it creates genetic variation
haploid gametes unite and cytoplasm merges - plasmogamy
if the nuclei fail to unite a dikaryotic a cell forms
eventually nuclei fuse a process called karyogamy
growth: what three organic compounds do they need?
- septrophy
- parasitism
- symbiosis
growth: what does saprotrophy nutrition mean?
feed on dead organisms and waste products
growth: what does parasitism nutrition mean?
they absorb nutrients from the living cells of another organism- known as a host which may cause disease
growth: what does symbiosis nutrition mean?
fungi live within tissues of another living organism to benefit of the host
environmental conditions:what are the water requirements?
they require water nutrient uptake
restricted to moist enviroments
