BIOLOGY 1407 EXAM 3 QUESTIONS WITH VERIFIED
ANSWERS
Which of the following is a difference between plants and fungi?
a. Plants have diploid and haploid phases, and fungi have only haploid stages.
b. Plants produce spores.
c. Fungi are heterotrophic, and plants are autotrophic.
d. Fungi are strictly asexual, and plants undergo sexual reproduction.
e. Fungi have cell walls. - Answers - C. Fungi are heterotrophic, and plants are
autotrophic
Fungi obtain nutrients through _____. - Answers - Absorption
The body of most fungi consists of threadlike _____, which form a network called a
_____. - Answers - hyphae ... mycellium
The diploid phase of the life cycle is shortest in which of the following?
a. angiosperm
b. gymnosperm
c. fungus
d. moss
e. fern - Answers - C. fungus
What sexual processes in fungi generate genetic variation? - Answers - karyogamy and
meiosis
An important example of interaction between fungi and certain other organisms is
mycorrhizae, in which the fungal partners _____. - Answers - helps plants take up
nutrients and water
Almost all of the members of this phylum form arbuscular mycorrhizae in a mutualistic
partnership with plants. - Answers - Glomeromycota
Fungi of the phylum Ascomycota are recognized on the basis of their production of
_____ during sexual reproduction. - Answers - saclike structures
Fungi form mutualistic relationships with plants and animals. Which of the following is
an example of such a relationship?
a. Endophytes in leaves produce toxins that deter herbivores.
b. Fungi can help increase drought tolerance in plants
, c. Fungi help break down plant material in the guts of grazing mammals.
d. Fungi help break down wood in the guts of termites.
e. All of the above. - Answers - e. all of the above
From the human perspective, which of the following kinds of fungi would be considered
the least useful or beneficial?
a. rusts
b. yeasts
c. decomposers
d. mycorrhizal fungi
e. truffles - Answers - a. rusts
Meiosis will produce microspores in the _____. - Answers - anther
In angiosperms, each pollen grain produces two sperm. What do these sperm do? -
Answers - One fertilizes an egg, and the other combines with two polar nuclei, which
develop into stored food cells (endosperm).
The germination of seeds _____. - Answers - depends on imbibition
Which association below is correct?
a. anther ... egg production
b. unisexual flowers ... dioecious
c. monoecious ... bisexual flowers
d. dioecious ... separate female and male plants
e. bisexual flowers ... dioecious - Answers - d. dioecious ... separate female and male
plants
Which of the following is an example of sexual reproduction?
a. fragmentation
b.apomixis
c. stump sprouts
d. cuttings
e. fusion of sperm and egg nuclei in an ovule - Answers - e. fusion of sperm and egg
nuclei in an ovule
Which of the following is an advantage of asexual reproduction in plants?
a. enhanced seed dispersal
b. no need for a pollinator
c. more robust offspring
d. genetic variation
ANSWERS
Which of the following is a difference between plants and fungi?
a. Plants have diploid and haploid phases, and fungi have only haploid stages.
b. Plants produce spores.
c. Fungi are heterotrophic, and plants are autotrophic.
d. Fungi are strictly asexual, and plants undergo sexual reproduction.
e. Fungi have cell walls. - Answers - C. Fungi are heterotrophic, and plants are
autotrophic
Fungi obtain nutrients through _____. - Answers - Absorption
The body of most fungi consists of threadlike _____, which form a network called a
_____. - Answers - hyphae ... mycellium
The diploid phase of the life cycle is shortest in which of the following?
a. angiosperm
b. gymnosperm
c. fungus
d. moss
e. fern - Answers - C. fungus
What sexual processes in fungi generate genetic variation? - Answers - karyogamy and
meiosis
An important example of interaction between fungi and certain other organisms is
mycorrhizae, in which the fungal partners _____. - Answers - helps plants take up
nutrients and water
Almost all of the members of this phylum form arbuscular mycorrhizae in a mutualistic
partnership with plants. - Answers - Glomeromycota
Fungi of the phylum Ascomycota are recognized on the basis of their production of
_____ during sexual reproduction. - Answers - saclike structures
Fungi form mutualistic relationships with plants and animals. Which of the following is
an example of such a relationship?
a. Endophytes in leaves produce toxins that deter herbivores.
b. Fungi can help increase drought tolerance in plants
, c. Fungi help break down plant material in the guts of grazing mammals.
d. Fungi help break down wood in the guts of termites.
e. All of the above. - Answers - e. all of the above
From the human perspective, which of the following kinds of fungi would be considered
the least useful or beneficial?
a. rusts
b. yeasts
c. decomposers
d. mycorrhizal fungi
e. truffles - Answers - a. rusts
Meiosis will produce microspores in the _____. - Answers - anther
In angiosperms, each pollen grain produces two sperm. What do these sperm do? -
Answers - One fertilizes an egg, and the other combines with two polar nuclei, which
develop into stored food cells (endosperm).
The germination of seeds _____. - Answers - depends on imbibition
Which association below is correct?
a. anther ... egg production
b. unisexual flowers ... dioecious
c. monoecious ... bisexual flowers
d. dioecious ... separate female and male plants
e. bisexual flowers ... dioecious - Answers - d. dioecious ... separate female and male
plants
Which of the following is an example of sexual reproduction?
a. fragmentation
b.apomixis
c. stump sprouts
d. cuttings
e. fusion of sperm and egg nuclei in an ovule - Answers - e. fusion of sperm and egg
nuclei in an ovule
Which of the following is an advantage of asexual reproduction in plants?
a. enhanced seed dispersal
b. no need for a pollinator
c. more robust offspring
d. genetic variation
