Question 1

If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is an)

Accepted Answer

A)   angiosperm.
B)   gymnosperm.
C)   lycophyte.
D)   fern.
E)   bryophyte. Gymnosperms are seed-producing vascular plants with megaphylls, but they do not produce flowers.

Question 2

Part Z is

Accepted Answer

A)   stored food.
B)   the sporophyte embryo.
C)   the seed coat.
D)   the gametophyte embryo.
E)   vascular tissue. X is the seed coat, Y is the sporophyte embryo, and Z is the stored food.

Question 3

Which of these does not belong to the angiosperm life cycle?

Accepted Answer

A)   double fertilization
B)   pollen
C)   megaspore
D)   flagellated sperm
E)   microspore Flagellated sperm are found in the life cycles of nonvascular plants, seedless vascular plants, and a very few gymnosperms, not in angiosperms.

Question 4

Endosperm is a ________ tissue.

Accepted Answer

A)   haploid n) 
B)   vascular
C)   diploid 2n) 
D)   cotyledon
E)   triploid 3n)  Endosperm results from double fertilization, and is thus a triploid 3n)  tissue.

Question 5

Which part of the figure represents the gametophyte?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E The gametophyte is the multicellular, haploid stage of the life cycle.

Question 6

Which of the following have microscopically small gametophytes?

Accepted Answer

A)   mosses
B)   ferns
C)   angiosperms
D)   gymnosperms
E)   both angiosperms and gymnosperms

Question 7

Which statement about fungi is incorrect?

Accepted Answer

A)   Fungi are chemoheterotrophic by absorption.
B)   Fungi produce gametes that are motile.
C)   Adult fungal cells are haploid.
D)   Fungal cell walls are composed of chitin.
E)   Fungi are thought to be descendants of a flagellated protist. Except for chytrids, fungi are nonmotile. Fungi do not produce gametes, but instead produce cells called hyphae that grow like filaments.

Question 8

Which of these is not a fungal disease mycosis) ?

Accepted Answer

A)   wheat rust
B)   ringworm
C)   athlete's foot
D)   oral thrush
E)   All of the choices are fungal diseases. Although not all fungi cause disease, many can and do infect both plants and animals including humans) .

Question 9

Which of these is mismatched?

Accepted Answer

A)   bryophytes - flagellated sperm
B)   lycophytes - microphylls
C)   ferns - megaphylls
D)   gymnosperms - fruits
E)   angiosperms - seeds Gymnosperms produce "naked" seeds that are not enclosed in fruits.

Question 10

Which of these is mismatched?

Accepted Answer

A)   carpel - ovary
B)   stamen - anther
C)   calyx - stigma
D)   corolla - petal
E)   stamen - filament The calyx consists of the sepals. The stigma is part of the carpel.

Question 11

Which part of the figure represents the sporophyte?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E The sporophyte is the multicellular, diploid stage of the life cycle.

Question 12

Conifers such as pine trees are classified as

Accepted Answer

A)   angiosperms.
B)   lycophytes.
C)   bryophytes.
D)   charophytes.
E)   gymnosperms. Conifers are gymnosperms; they produce "naked" seeds on the surfaces of their cone scales.

Question 13

Why are green algae placed in the kingdom Protista, while plants are given their own kingdom?

Accepted Answer

A)   Plants enclose and protect the embryo within the female plant, while green algae do not.
B)   The green algae use chlorophyll a, while plants use chlorophyll b.
C)   Green algae have a cell wall of chitin, while plants have cell walls of cellulose.
D)   All plants are vascular, while all green algae are nonvascular.
E)   Algae are sporophytes that reproduce only asexually, while plants are gametophytes and reproduce sexually.

Question 14

Pollen grains are

Accepted Answer

A)   female gametophytes.
B)   embryonic sporophytes.
C)   male gametophytes.
D)   megaspores.
E)   encapsulated ovules. Pollen grains are male gametophytes that are resistant to dry conditions.

Question 15

Some scientists estimate that over half of the world's rainforest has already been lost, mostly due to human activities. What would you predict as a consequence of the massive loss of plant life?

Accepted Answer

A)   a decline in atmospheric carbon dioxide
B)   reduced incidence of flooding
C)   an increase in atmospheric carbon dioxide
D)   a decline in soil erosion
E)   a drop in average temperatures worldwide Areas of rich vegetation, such as rainforests, help keep carbon dioxide levels in the atmosphere relatively low. Thus, the loss of rainforest may contribute to global warming.

Question 16

Which fungal disease can lead to a major economic loss in wheat crops?

Accepted Answer

A)   smut
B)   rusts
C)   leaf curl disease
D)   blast disease
E)   ergotism Rusts are specific to attacking wheat. They require an alternate host, usually barberry, in order to complete their life cycle.

Question 17

When making bread, you first "proof" the yeast by mixing it with sugar in lukewarm water. Assuming that the yeast are alive, what happens next and why?

Accepted Answer

A)   The water will become cloudy as the flagellated yeast cells swim around.
B)   The yeast will germinate and start to form a mycelium.
C)   Bubbles form as the yeast ferment the sugar and release carbon dioxide.
D)   Bubbles form as the yeast produce sugar and release oxygen.
E)   Nothing could happen, since yeast are not living organisms.

Question 18

How is the mycelium a valuable adaptation for a fungus?

Accepted Answer

A)   It provides a strong anchor for the fungus.
B)   It provides a large surface area for the absorption of nutrients and moisture.
C)   It discourages animals from feeding on the fungus.
D)   It provides a vast surface area for the generation of spores.
E)   It provides physical support for the fragile sporophyte generation. Having a large surface area is beneficial to fungi, which are chemoheterotrophs by absorption and largely nonmotile.

Question 19

Which structure is the style?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E A and B are the anther and filament. C and D are the stigma and style. E is the ovary.

Question 20

Many garden supply stores sell root dips used to treat plants that are being transplanted. Such dips are advertised as containing spores. What kind of spores should these dips contain?

Accepted Answer

A)   mycorrhizal fungi
B)   chytrids
C)   lycophytes
D)   yeasts
E)   lichens Mycorrhizal fungi form mutualistic associations with plant roots and help the plants to thrive.

Exam 18: The Plants and Fungi

Which statement about fungi is incorrect?

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Which part of the figure represents the sporophyte?

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Part Z is

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Which part of the figure represents the gametophyte?

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Which of these is not a fungal disease mycosis) ?

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Which of these does not belong to the angiosperm life cycle?

Correct AnswerverifiedShow Answer

Why are green algae placed in the kingdom Protista, while plants are given their own kingdom?

Correct AnswerverifiedShow Answer

When making bread, you first "proof" the yeast by mixing it with sugar in lukewarm water. Assuming that the yeast are alive, what happens next and why?

Correct AnswerverifiedShow Answer

Many garden supply stores sell root dips used to treat plants that are being transplanted. Such dips are advertised as containing spores. What kind of spores should these dips contain?

Correct AnswerverifiedShow Answer

Which structure is the style?

Correct AnswerverifiedShow Answer

Conifers such as pine trees are classified as

Correct AnswerverifiedShow Answer

Some scientists estimate that over half of the world's rainforest has already been lost, mostly due to human activities. What would you predict as a consequence of the massive loss of plant life?

Correct AnswerverifiedShow Answer

Which of the following have microscopically small gametophytes?

Correct AnswerverifiedShow Answer

How is the mycelium a valuable adaptation for a fungus?

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Which of these is mismatched?

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Endosperm is a ________ tissue.

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Pollen grains are

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If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is an)

Correct AnswerverifiedShow Answer

Which fungal disease can lead to a major economic loss in wheat crops?

Correct AnswerverifiedShow Answer

Which of these is mismatched?

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