CH. 29 BIO

Consuming even a single mushroom of the genus ____ can be fatal.

Amanita

Members of phylum ____ are the most primitive of the fungi and were previously classified as protists.

Chytridiomycota

The cell walls of fungi are composed of cellulose.

False - chitin

Chytrids produce spores that lack a flagellum.

False - have

How do mycorrhizae benefit plants?

Mycorrhizae increase a plant's absorptive surface area of roots.

Which genus is used to produce beer and wine?

Saccharomyces

A lichen is a combination of a fungus and a(n) photoautotroph.

True

Conidia are asexual spores.

True

In mushrooms, karyogamy occurs within the basidium.

True

Microsporidia are unicellular parasites of animals.

True

The sac fungi are characterized by sexual reproductive structures called:

asci.

Ascomycetes reproduce sexually by forming:

ascospores.

The club fungi typically reproduce by producing:

basidia.

Mushrooms that we eat are technically referred to as:

basidiocarps.

The fungus that causes black stem rust of wheat belongs to which fungal group?

basidiomycetes

Which is an example of a member of phylum Zygomycota?

black bread mold

Yeasts reproduce asexually by:

budding

The cell walls of fungi are composed of:

chitin

Fungi that lack septa are called:

coenocytic.

Production of ____ is a means of rapidly propagating new mycelia when environmental conditions are favorable for ascomycetes.

conidia

In a fungus, a complex multicellular reproductive structure is called a(n):

fruiting body.

Which process takes place within the young basidia on the gills of the mushroom?

karyogamy

Of the following, which would be predicted to grow at the slowest rate?

lichens

A ____ is a tangled mass of hyphae.

mycelium

Dikaryotic cells are denoted as _____ rather than _____ because there are two separate haploid nuclei.

n + n; 2n

Most fungal spores are ____ reproductive cells that are produced ____.

nonmotile; sexually or asexually

Refer to the accompanying figure. The structure labeled as 1 is a: (diagram)

perforated septum

Refer to the accompanying figure. What is missing in the filament labeled as A?

septa

Phyla Ascomycota and Basidiomycota are considered ____ because they share a more recent common ancestor with each other than either does with any other group.

sister taxa

When bread gets moldy with visible black or blue spots, you are looking at masses of the colored:

spores.

Which unicellular fungus is probably in most kitchens?

yeast

Refer to the accompanying figure. The structure labeled as 4 is a: (diagram)

zygote