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Life: The Science of Biology

David E. Sadava, David M. Hilliss, H. Craig Heller,May Berenbaum

Chapter 30

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners - all with Video Answers

Educators

SF

Chapter Questions

05:18

Problem 1

Which statement about fungi is not true?
a. A multicellular fungus has a body called a mycelium.
$b$. Hyphae are composed of individual mycelia.
$c .$ Many fungi tolerate highly hypertonic environments.
$d$. Many fungi tolerate low temperatures.
$e .$ Some fungi are anchored to their substrate by rhizoids.

Heather Thornton
Heather Thornton
Numerade Educator
02:16

Problem 2

The absorptive heterotrophy of fungi is aided by
$a .$ dikaryon formation.
$b$. spore formation.
$c .$ the fact that they are all parasites.
$d$. their large surface area-to-volume ratio.
$e .$ their possession of chloroplasts.

Dr. Bridgette Drummond
Dr. Bridgette Drummond
Numerade Educator
04:27

Problem 3

Which statement about fungal nutrition is not true?
a. Some fungi are active predators.
b. Some fungi form mutualistic associations with other organisms.
c. All fungi require mineral nutrients.
$d .$ Fungi can make some of the compounds that are vitamins for animals.
e. Facultative parasites can grow only on their specific hosts.

Bryan Lynn
Bryan Lynn
Numerade Educator
05:09

Problem 4

Which statement about dikaryosis is not true?
a. The cytoplasm of two cells fuses before their nuclei fuse.
$b$. The two haploid nuclei are genetically different.
c. The two nuclei are of the same mating type.
$d .$ The dikaryon stage ends when the two nuclei fuse.
$e .$ Not all fungi have a dikaryon stage.

Heather Thornton
Heather Thornton
Numerade Educator
04:43

Problem 5

Reproductive structures consisting of one or more photosynthetic cells surrounded by fungal hyphae are called
$a$. ascospores.
$b .$ basidiospores.
c. conidia.
$d .$ soredia.
$e .$ gametes.

Heather Thornton
Heather Thornton
Numerade Educator
01:48

Problem 6

Members of the zygospore fungi
$a$. have hyphae without regularly occurring septa.
b. produce motile gametes.
$c$. form fleshy fruiting bodies.
$d$. are haploid throughout their life cycle.
e. have sexual reproductive structures similar to those of the sac fungi.

SF
Sarah Frisbie
Numerade Educator
02:03

Problem 7

Which statement about sac fungi is not true?
$a .$ Some species are yeasts.
$b$. They form reproductive structures called asci.
$c .$ Their hyphae are segmented by septa.
$d .$ Many of their species have a dikaryotic state.
e. All have fruiting structures called ascomata.

SF
Sarah Frisbie
Numerade Educator
01:21

Problem 8

Club fungi
$a$. often produce fleshy fruiting structures.
b. have hyphae without septa.
$c .$ have no sexual stage.
d. produce basidia within basidiospores.
$e .$ form diploid basidiospores.

Christina Sorrentino
Christina Sorrentino
Numerade Educator
01:07

Problem 9

Microsporidia
a. lack true mitochondria.
$b$. are parasites of animals.
$c .$ contain mitosomes.
$d$. are among the smallest eukaryotes known.
$e .$ all of the above

Dr. Bridgette Drummond
Dr. Bridgette Drummond
Numerade Educator
01:38

Problem 10

Which statement about lichens is not true?
$a .$ They can reproduce by fragmentation of the vegetative body.
b. They are often the first colonists in a new area.
$c$. They render their environment more basic (alkaline).
$d$. They contribute to soil formation.
e. They may contain less than 10 percent water by weight.

Dr. Bridgette Drummond
Dr. Bridgette Drummond
Numerade Educator