bioL quiz 5 Flashcards
ascocarp
mature fruiting body produced by hyphae
ascus
sexual spore bearing cells in ascomyta
basidium
club shaped spore bearing structures
conidia
asexual spores produced by fungi
conidiophore
produce conidia
dikaryotic
2 haploid nuclei
hyphae
branch like filaments that make up mycelium
lichen
symbiotic relationship between a fungus and cyanobacterium
mycelium
root like structure made up of interwoven hyphae
mycorrhizae
symbiotic relationship between plant and fungus root systems where fungus decomposes organic material in soil and supplies minerals directly to plant in exchange for sugar and amino acids
parasitic form
extract nutrients from living plants or animals
saprophytic form
extract nutrients from dead decomposing organic matter
sporangium
produces asexual haploid spores
zygospore
spiky diploid structure with thick dark walls. resistant to harsh environments
how does rhizopus reproduce sexually
sporangium produces haploid spores which fall onto a food source and germinate into haploid filaments
how do ascomycetes reproduce
sexually when haploid mycelia fuse to form a dikaryotic hyphae
radial symmetry
symmetry at multiple points ex: starfish
why are sponges the most primitive animal
they have a simple body plan and lack symmetry and true tissues. also no coelomic plan.
how do sponges obtain food
nutrients in water are trapped in sticky mucus at the base of a flagellum of a collared cell. they’re digested into collar cell vacuoles and passed to other cells.
3 advances cnidarians have over sponges
distinct tissues, radial symmetry, 2 tissue layers
