Chp. 29

The vegetative (nutritionally active) bodies of most fungi are ________. I. composed of hyphae II. referred to as a mycelium III. usually underground

I, II and III

The sporangia of the bread mold Rhizopus are _____.

asexual structures that produce haploid spores

Lichens are symbiotic associations of fungi and _____.

cyanobacteria or algae

Why are mycorrhizal fungi superior to plants at acquiring mineral nutrition from the soil?

fungi secrete extracellular enzymes that can break down large molecules

All fungi are _____

heterotrophic

What is the major distinguishing characteristic of fungi?

nutrient acquisition via external digestion

Both asexual sporangia and zygosporangia can be found in cow dung. Make a simplified drawing that illustrates the events of plasmogamy, karyogamy, and meiosis that occur during sexual reproduction in Pilobolus. Be sure to indicate and label the zygosporangium. Drag the appropriate labels to their respective targets.

plasmogamy zygosporangium karyogamy diploid nuclei meiosis haploid nuclei

What are asci?

sac-like structures that produce eight spores

Which of these fungal features supports the phylogenetic conclusion that fungi are more closely related to animals than to plants?

the cell walls of fungi are made of chitin

In both lichens and mycorrhizae, what does the fungal partner provide to its photosynthetic partner?

water and minerals