Question 1

Which of the following animals can serve as pollinators for some types of angiosperm?

Accepted Answer

A)  birds
B)  butterflies
C)  bats
D)  moths
E)  fish

Question 2

Endosperm is a tissue that is present in which of the following structures?

Accepted Answer

A)  the eggs of green algae
B)  the spores of bryophytes
C)  the spores of lycophytes
D)  the seeds of gymnosperms
E)  the seeds of angiosperms

Question 3

In the life cycles of mosses and ferns, which of the following structures are diploid (2n) ?

Accepted Answer

A)  sporophyte
B)  gametophyte
C)  zygote
D)  sperm
E)  eggs

Question 4

A reasonable hypothesis for the evolution in pines of a delay in complete development of the female gametophyte until after pollination is that:

Accepted Answer

A)  complete development of the female gametophyte requires fusion of gametes.
B)  many seeds fail to be successfully dispersed, and thus investing resources to complete the development of female gametophytes before pollination would be costly.
C)  in fact, development of the female gametophyte is continuous, without any pause.
D)  many ovules fail to be successfully pollinated, and thus investing resources to complete the development of female gametophytes before pollination would be costly.

Question 5

Which of the following is/are a major difference(s)  between all spore-dispersing and seed-dispersing plants?

Accepted Answer

A)  The sporophyte of seed plants is photosynthetically independent.
B)  The gametophytes of seed plants are never exposed to the external environment.
C)  Seed plants disperse gametes and seeds instead of spores.
D)  In seed plants, dispersed spores contain a multicellular gametophyte.

Question 6

Recall that angiosperms spend a great deal of energy and resources attracting pollinators. What are some of the methods flowers use to lure pollinators?

Accepted Answer

A)  Flowers can mimic females of an insect species (both in appearance and pheromones) .
B)  Flowers can be brightly colored and produce nectar.
C)  Flowers can produce chemicals used by insects to synthesize pheromones.
D)  Flowers can produce scents similar to those emitted by dung or animal carcasses.
E)  Flowers can produce high-frequency sounds due to air flow through specialized floral parts to attract nocturnal pollinators such as bats.

Question 7

In ferns, the _____ generation is physically larger.

Accepted Answer

A)  haploid gametophyte
B)  diploid gametophyte
C)  haploid sporophyte
D)  diploid sporophyte
E)  haploid prothallophyte

Question 8

Which of the following undergoes mitosis to become multicellular in both the haploid and diploid phases of its life cycle?

Accepted Answer

A)  Chara
B)  liverworts
C)  horsetails
D)  ferns
E)  angiosperms

Question 9

In seed plants, the outermost protective tissues of the ovule are derived from:

Accepted Answer

A)  the male gametophyte.
B)  the female gametophyte.
C)  the sporophyte.
D)  both sporophyte and gametophyte generations equally.

Question 10

Pollen cones can be thought of as modified:

Accepted Answer

A)  sporangia that produce spores, which develop only into male gametophytes.
B)  leaves bearing sporangia.
C)  shoots bearing leaves bearing sporangia.
D)  sporophytes that produce only male spores.

Question 11

What would be the result if dispersal took a gamete to an environment not previously colonized by that species?

Accepted Answer

A)  development of a new haploid individual
B)  development of a new diploid individual
C)  failure to colonize the new environment
D)  development of a clonal population

Question 12

Which of the following groups of organisms completes both its sexual reproduction and its dispersal in water?

Accepted Answer

A)  Chara
B)  liverworts
C)  horsetails
D)  ferns
E)  angiosperms

Question 13

Imagine that you find a new type of plant with a rather interesting method of reproduction. This plant produces horizontal stems, but instead of these stems giving rise to new individuals, they function in seed dispersal. What can you say about this plant?

Accepted Answer

A)  Because this plant produces horizontal stems, it must only reproduce asexually.
B)  Because this plant produces seeds, it likely reproduces through sexual reproduction.
C)  Because this plant produces horizontal stems, this is an example of sexual vegetative reproduction.
D)  Because this plant produces seeds, it must reproduce asexually.
E)  None of the answer options is correct.

Question 14

Which of the following is NOT diploid (2n) ?

Accepted Answer

A)  an angiosperm seed
B)  pollen
C)  rose petals
D)  tree bark
E)  the roots of a pine tree

Question 15

How do seeds compare to spores as dispersal units?

Accepted Answer

A)  They both establish a new diploid individual.
B)  Seeds are multicellular and contain resources to support establishment and growth.
C)  Spores are adapted for wind dispersal, but seeds are not.
D)  Seeds are larger and heavier, and require extra investment in tissues that aid dispersal.

Question 16

A strawberry farmer's crop has been devastated by a fungal infection. The farmer searches for any fungi-resistant strawberry plants in his fields, but finds none. Why?

Accepted Answer

A)  Due to vegetative reproduction, his plants are genetically diverse.
B)  Due to vegetative reproduction, his plants are not genetically diverse.
C)  Due to sexual reproduction, his plants are not genetically diverse.
D)  Due to sexual reproduction, his plants are genetically diverse.

Question 17

In which of the following plants does the sporophyte eventually become self-sustaining (i.e., is not dependent on the gametophyte for nutrients) ?

Accepted Answer

A)  mosses
B)  gymnosperms
C)  hornworts
D)  angiosperms
E)  ferns

Question 18

Which has the greater degree of genetic uniformity: all the gametes produced by a single moss gametophyte or all the spores produced by a single moss sporophyte?

Accepted Answer

A)  Genetic uniformity would be higher between gametes.
B)  Genetic uniformity would be higher between spores.
C)  Genetic uniformity would be similar between spores and gametes.
D)  Both spore and gametes are sexual products and highly genetically diverse.

Question 19

Can pollinator shifts enhance rates of species formation in plants?

Accepted Answer

A)  yes
B)  no

Question 20

A haploid cell contains _____, and a diploid cell contains _____.

Accepted Answer

A)  one set of chromosomes (1n) ; two sets of chromosomes (2n) 
B)  three sets of chromosomes (3n) ; two sets of chromosomes (2n) 
C)  two sets of chromosomes (2n) ; one set of chromosome (1n) 
D)  one set of chromosomes (1n) ; three sets of chromosomes (3n)

Exam 30: Plant Reproduction: Finding Mates and Dispersing Young

Can pollinator shifts enhance rates of species formation in plants?

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Recall that angiosperms spend a great deal of energy and resources attracting pollinators. What are some of the methods flowers use to lure pollinators?

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Endosperm is a tissue that is present in which of the following structures?

Correct AnswerverifiedShow Answer

What would be the result if dispersal took a gamete to an environment not previously colonized by that species?

Correct AnswerverifiedShow Answer

A strawberry farmer's crop has been devastated by a fungal infection. The farmer searches for any fungi-resistant strawberry plants in his fields, but finds none. Why?

Correct AnswerverifiedShow Answer

In which of the following plants does the sporophyte eventually become self-sustaining (i.e., is not dependent on the gametophyte for nutrients) ?

Correct AnswerverifiedShow Answer

Which of the following animals can serve as pollinators for some types of angiosperm?

Correct AnswerverifiedShow Answer

In ferns, the _____ generation is physically larger.

Correct AnswerverifiedShow Answer

Pollen cones can be thought of as modified:

Correct AnswerverifiedShow Answer

Which has the greater degree of genetic uniformity: all the gametes produced by a single moss gametophyte or all the spores produced by a single moss sporophyte?

Correct AnswerverifiedShow Answer

Which of the following groups of organisms completes both its sexual reproduction and its dispersal in water?

Correct AnswerverifiedShow Answer

How do seeds compare to spores as dispersal units?

Correct AnswerverifiedShow Answer

A reasonable hypothesis for the evolution in pines of a delay in complete development of the female gametophyte until after pollination is that:

Correct AnswerverifiedShow Answer

Which of the following is/are a major difference(s) between all spore-dispersing and seed-dispersing plants?

Correct AnswerverifiedShow Answer

Imagine that you find a new type of plant with a rather interesting method of reproduction. This plant produces horizontal stems, but instead of these stems giving rise to new individuals, they function in seed dispersal. What can you say about this plant?

Correct AnswerverifiedShow Answer

In the life cycles of mosses and ferns, which of the following structures are diploid (2n) ?

Correct AnswerverifiedShow Answer

A haploid cell contains _____, and a diploid cell contains _____.

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Which of the following is NOT diploid (2n) ?

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Which of the following undergoes mitosis to become multicellular in both the haploid and diploid phases of its life cycle?

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In seed plants, the outermost protective tissues of the ovule are derived from:

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A haploid cell contains _, and a diploid cell contains _.

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