Question 1

Which of the following information provides the strongest evidence to support the evolutionary relatedness between fungi and animals?

Accepted Answer

A)  They both possess a cell wall made of chitin.
B)  Both of them are heterotrophic.
C)  Molecular data showing a similarity in DNA / RNA base sequences.
D)  Some fungi and animals have flagella.E) All of the above
F) A) and C)

Question 2

Fungi are thought to have been the first kind of eukaryotic cells that evolved.

Accepted Answer

A) True 
 B)False

Question 3

Arbuscular mycorrhizal fungi invade plant roots,with some species forming mutualistic associations that benefit both the fungus and the plant.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following does not describe Phylum Ascomycota?

Accepted Answer

A)  They are limited to only asexual reproduction.
B)  Uses candidospores during reproduction.
C)  Morel mushrooms are members of this phylum.
D)  The fruiting body is known as an ascocarp.E) A) and C)
F) B) and C)

Question 5

Mycorrhizae is a mutualistic relationship between fungi and algae in which the algae takes advantage of the fungi.

Accepted Answer

A) True 
 B)False

Question 6

Which statement is the most likely description of the common ancestor that exists between fungi and animals?

Accepted Answer

A)  The ancestor was a flagellated organism that lived in some type of aquatic environment.It was most likely a unicellular protist.
B)  The ancestor was a flagellated organism that lived on the terrestrial environment.It was most likely a unicellular protist.
C)  The ancestor was a flagellated organism that lived in some type of aquatic environment.It was most likely a multicellular protist.
D)  The ancestor was a multicellular organism that lived in some type of aquatic environment.It was most likely a flagellated protist.E) A) and B)
F) B) and D)

Question 7

The relationship between the fungi and algae in lichens is best described as

Accepted Answer

A)  a simple cooperative mutualism between normally free-living strains.
B)  a possible controlled parasitism wherein the fungi withdraw food from the algae and the algae do not benefit from the association.
C)  an endosymbiotic transfer of the chloroplasts of algae to the hyphae cells.
D)  a complete mixing of the genomes of the two groups at the cellular level.
E)  a possible controlled parasitism wherein the algae are moistened and protected by the fungi,but the fungi do not benefit from the association.F) A) and C)
G) B) and D)

Question 8

In differentiating fungi from plants and animals,which of the following statements is NOT true?

Accepted Answer

A)  Animals are heterotrophic by ingestion while fungi are heterotrophic by absorption.
B)  Plants have cell walls of cellulose; fungi have cell walls of chitin.
C)  The energy reserve of fungi is starch while the energy reserve of animals is glycogen.
D)  Fungal spores develop into haploid hyphae without embryo development; plants have embryo development.E) A) and B)
F) A) and C)

Question 9

The part of a mushroom that we eat is usually the reproductive structure that supports the fruiting body.

Accepted Answer

A) True 
 B)False

Question 10

Poisonous or physiologically active chemicals found in various fungi include all of the following EXCEPT

Accepted Answer

A)  muscarine and muscaridine.
B)  psilocybin,a structural analog of LSD and mescaline.
C)  ergot alkaloids.
D)  digitoxin.E) All of the above
F) A) and B)

Question 11

Figure: Study the evolutionary relationships among fungi to determine if the following statements are true or false. 
-Molecular data suggests that AM fungi are more closely related to Sac than Club fungi.

Accepted Answer

A) True 
 B)False

Question 12

Fungal infections are difficult to treat because

Accepted Answer

A)  fungal and human cells are so similar that it is difficult to make fungal medications that do not harm human cells.
B)  they "hide out" inside of cells,and have long latent periods where medications can not get to the organism.
C)  they mutate very rapidly and therefore become resistant to most medications.
D)  All of the above.E) A) and B)
F) A) and C)

Question 13

Which of the following statements most accurately describes the structural components of fungi?

Accepted Answer

A)  The vast majority of fungi are multicellular organisms that are composed of a mycelium as well as individual hyphae.Chitin is a structural carbohydrate that makes up the cell wall of fungi.
B)  The vast majority of fungi are multicellular organisms that are composed of a mycelium as well as individual hyphae.Cellulose is a structural carbohydrate that makes up the cell wall of fungi.
C)  The vast majority of fungi are unicellular organisms that are composed of a mycelium as well as individual hyphae.Chitin is a structural carbohydrate that makes up the cell wall of fungi.
D)  The vast majority of fungi are multicellular organisms that are composed of a single hyphae and multiple mycelium.Chitin is a structural carbohydrate that makes up the cell wall of fungi.E) A) and D)
F) None of the above

Question 14

In time,bread becomes stale and grows mold on the exposed surfaces.Why does mold not begin growing inside the bread loaf?

Accepted Answer

A)  Mold can grow only on dry surfaces.
B)  Only molds at the surface of the bread can get oxygen to respire.
C)  Mold actually begins from anywhere inside but produces colored spores only at the surface.
D)  There is an antibiotic antagonism between the bread mold and the internal yeasts that made the bread rise.
E)  The bread was sterilized when it was baked and thereafter mold spores from the air settle only on the outside of the cooled bread.F) A) and D)
G) All of the above

Question 15

Fungal diseases include all of the following EXCEPT

Accepted Answer

A)  thrush.
B)  Strep throat (pharyngitis) .
C)  athlete's foot.
D)  histoplasmosis.E) A) and B)
F) A) and C)

Question 16

A normal inhabitant of the vaginal tract that causes "yeast infections" under certain circumstances is Saccharomyces.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following spores is the result of asexual reproduction?

Accepted Answer

A)  sporangiospores
B)  zygospores
C)  ascospores
D)  basidiosporesE) B) and C)
F) A) and D)

Question 18

Dikaryotic cells of fungi

Accepted Answer

A)  are just another form of haploid cells.
B)  is just another name for diploid cells.
C)  contain paired haploid nuclei that fail to fuse for an extended period of time.
D)  are nonseptate plasmodial masses with many nuclei and no cell partitioning.
E)  are potential symbionts that can join with algae to form lichens.F) None of the above
G) A) and B)

Question 19

The difference between septate hyphae and nonseptate hyphae is

Accepted Answer

A)  a difference in haploid and diploid cells.
B)  a distinction between saprotrophic fungi and parasitic or disease-causing fungi.
C)  a classification trait that separates basidiomycotes from ascomycotes.
D)  a distinction between plasmodial masses with many nuclei and nonliving zygospores.
E)  determined by whether the hyphae have cross walls or lack cross walls.F) A) and E)
G) A) and B)

Question 20

Which of the following fungi / Phylum associations is incorrect?

Accepted Answer

A)  button mushrooms / Basidiomycota
B)  morel mushroom / Ascomycota
C)  Chytriomyces / Cytridiomycota
D)  black bread mold / Zygomycota
E)  cup fungus / GlomeromycotaF) B) and E)
G) A) and D)

Exam 22: Fungi Evolution and Diversity

Which of the following information provides the strongest evidence to support the evolutionary relatedness between fungi and animals?

Correct AnswerverifiedShow Answer

Which of the following does not describe Phylum Ascomycota?

Correct AnswerverifiedShow Answer

In time,bread becomes stale and grows mold on the exposed surfaces.Why does mold not begin growing inside the bread loaf?

Correct AnswerverifiedShow Answer

The difference between septate hyphae and nonseptate hyphae is

Correct AnswerverifiedShow Answer

Dikaryotic cells of fungi

Correct AnswerverifiedShow Answer

Which statement is the most likely description of the common ancestor that exists between fungi and animals?

Correct AnswerverifiedShow Answer

Figure: Study the evolutionary relationships among fungi to determine if the following statements are true or false. -Molecular data suggests that AM fungi are more closely related to Sac than Club fungi.

Correct AnswerverifiedShow Answer

The part of a mushroom that we eat is usually the reproductive structure that supports the fruiting body.

Correct AnswerverifiedShow Answer

Fungal diseases include all of the following EXCEPT

Correct AnswerverifiedShow Answer

Which of the following statements most accurately describes the structural components of fungi?

Correct AnswerverifiedShow Answer

Mycorrhizae is a mutualistic relationship between fungi and algae in which the algae takes advantage of the fungi.

Correct AnswerverifiedShow Answer

Which of the following fungi / Phylum associations is incorrect?

Correct AnswerverifiedShow Answer

Fungi are thought to have been the first kind of eukaryotic cells that evolved.

Correct AnswerverifiedShow Answer

A normal inhabitant of the vaginal tract that causes "yeast infections" under certain circumstances is Saccharomyces.

Correct AnswerverifiedShow Answer

Which of the following spores is the result of asexual reproduction?

Correct AnswerverifiedShow Answer

Poisonous or physiologically active chemicals found in various fungi include all of the following EXCEPT

Correct AnswerverifiedShow Answer

Fungal infections are difficult to treat because

Correct AnswerverifiedShow Answer

Arbuscular mycorrhizal fungi invade plant roots,with some species forming mutualistic associations that benefit both the fungus and the plant.

Correct AnswerverifiedShow Answer

The relationship between the fungi and algae in lichens is best described as

Correct AnswerverifiedShow Answer

In differentiating fungi from plants and animals,which of the following statements is NOT true?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified