Question 1

Which of the following structures is used by strawberry plants during asexual reproduction?

Accepted Answer

A)   stolon
B)   rhizome
C)   tuber
D)   corm
E)   ovaryF) B) and E)
G) A) and B)

Question 2

Which of the following plant hormones promotes cell division and prevents senescence?

Accepted Answer

A)   cytokinins
B)   auxin
C)   gibberellins
D)   abscisic acid
E)   ethyleneF) D) and E)
G) A) and C)

Question 3

If ethylene is applied to a bushel of apples, what is most likely to occur?

Accepted Answer

A)   The fruit will all ripen.
B)   The apple seeds will go into a state of dormancy.
C)   The seeds will germinate.
D)   The fruit will retain its water for a longer period of time.
E)   The apple stem will fall off.F) A) and E)
G) A) and D)

Question 4

In what way would a grower in the grape industry use gibberellins?

Accepted Answer

A)   Gibberellins would increase the size of the fruits.
B)   Gibberellins would prevent the plants from getting fungal infections.
C)   Gibberellins would help break down the starches found in the fruits, making them sweeter.
D)   Gibberellins would promote an increase in the rate at which the plants produce fruit.
E)   Gibberellins would make the plants resistant to parasitic infections.F) C) and D)
G) B) and D)

Question 5

Gametophytes of flowering plants are produced within the flower.

Accepted Answer

A) True 
 B)False

Question 6

In a eudicot seed, the zygote becomes the _____, while the _____ is derived from the endosperm.

Accepted Answer

A)   embryo; seed coat
B)   cotyledons; embryo
C)   embryo; cotyledon
D)   embryo; stored food
E)   stored food; seed coatF) C) and D)
G) B) and C)

Question 7

A farmer wishes to force a normal plant to maintain a dwarf size. Which of the following plant hormones might she apply?

Accepted Answer

A)   auxin
B)   cytokinin
C)   ethylene
D)   abscisic acid
E)   gibberellinsF) A) and D)
G) A) and B)

Question 8

An increase in the amount of protein produced is an advantage of using plants to develop products for the pharmaceutical industry.

Accepted Answer

A) True 
 B)False

Question 9

The products of double fertilization in the _____ are a 2n ____ and a 3n _____.

Accepted Answer

A)   ovary; zygote; endosperm
B)   ovary; endosperm; zygote
C)   anther; zygote; endosperm
D)   anther; endosperm; zygote
E)   stigma; endosperm; zygoteF) A) and B)
G) C) and D)

Question 10

Which of the following is a function of the flower in an angiosperm?

Accepted Answer

A)   producing fruit
B)   protection of the gametophyte
C)   attracting pollinators
D)   producing spores
E)   All of the above are functions of a flower.F) A) and D)
G) All of the above

Question 11

An incomplete flower may lack a carpel.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is a method of sexual reproduction in plants?

Accepted Answer

A)   rhizomes
B)   stolons
C)   suckers
D)   tubers
E)   dry fruitsF) B) and D)
G) A) and E)

Question 13

Auxin causes bending in stems and roots by

Accepted Answer

A)   causing cell elongation.
B)   preventing cell elongation.
C)   breaking down cell walls.
D)   causing cell shrinkage.
E)   inhibiting lateral bud growth.F) D) and E)
G) C) and E)

Question 14

A monocot seed consists of a seed coat, two cotyledons, an embryo, and an endosperm.

Accepted Answer

A) True 
 B)False

Question 15

A nursery wishes to produce a large number of carrot plants for sale in the spring. The nursery will most likely use which technique?

Accepted Answer

A)   tissue culture
B)   hybridization
C)   cuttings
D)   anther culture
E)   meristem cultureF) A) and D)
G) B) and D)

Question 16

A winter bud begins winter with an amount of abscisic acid to maintain dormancy. Dormancy is broken in the spring because of a(n)

Accepted Answer

A)   gradual reduction in abscisic acid over winter.
B)   increase of abscisic acid production by the meristem within the bud.
C)   increase in cytokinin in the leaves.
D)   gradual reduction of auxin in the shoot tip.
E)   gradual increase in ethylene production by the meristem within the bud.F) A) and D)
G) B) and E)

Question 17

Which of the following is an advantage of genetically engineered plants?

Accepted Answer

A)   increased yield
B)   herbicide resistance
C)   drought tolerance
D)   disease protection
E)   All of the above are advantages of genetically engineered plants.F) C) and D)
G) A) and B)

Question 18

A fleshy fruit is more likely to use which of the following methods of seed dispersal?

Accepted Answer

A)   eaten by animals and seeds passed through feces
B)   blown by wind
C)   stuck to fur of mammal and carried
D)   fruit bursts when mature, spreading seeds outward
E)   drop and remain near parent plantF) D) and E)
G) C) and E)

Question 19

You wish to change the growth pattern of the shrubs in your yard to give them a fuller, more bushy appearance. This could be accomplished by

Accepted Answer

A)   pruning the terminal bud.
B)   pruning the lateral buds.
C)   pruning the lateral buds and applying gibberellins.
D)   applying auxin to the roots.
E)   pruning the shoot tip and applying auxin to the shoot.F) B) and C)
G) B) and E)

Question 20

A long-day (short-night)  plant would most likely bloom

Accepted Answer

A)   in the fall.
B)   in the spring.
C)   in the summer.
D)   at night.
E)   during the day.F) A) and B)
G) A) and C)

Exam 21: Plant Responses and Reproduction

Which of the following structures is used by strawberry plants during asexual reproduction?

Correct AnswerverifiedShow Answer

Which of the following is a function of the flower in an angiosperm?

Correct AnswerverifiedShow Answer

An increase in the amount of protein produced is an advantage of using plants to develop products for the pharmaceutical industry.

Correct AnswerverifiedShow Answer

Which of the following is an advantage of genetically engineered plants?

Correct AnswerverifiedShow Answer

You wish to change the growth pattern of the shrubs in your yard to give them a fuller, more bushy appearance. This could be accomplished by

Correct AnswerverifiedShow Answer

Which of the following plant hormones promotes cell division and prevents senescence?

Correct AnswerverifiedShow Answer

A winter bud begins winter with an amount of abscisic acid to maintain dormancy. Dormancy is broken in the spring because of a(n)

Correct AnswerverifiedShow Answer

Gametophytes of flowering plants are produced within the flower.

Correct AnswerverifiedShow Answer

In a eudicot seed, the zygote becomes the _____, while the _____ is derived from the endosperm.

Correct AnswerverifiedShow Answer

An incomplete flower may lack a carpel.

Correct AnswerverifiedShow Answer

The products of double fertilization in the _____ are a 2n ____ and a 3n _____.

Correct AnswerverifiedShow Answer

Which of the following is a method of sexual reproduction in plants?

Correct AnswerverifiedShow Answer

A nursery wishes to produce a large number of carrot plants for sale in the spring. The nursery will most likely use which technique?

Correct AnswerverifiedShow Answer

Auxin causes bending in stems and roots by

Correct AnswerverifiedShow Answer

A monocot seed consists of a seed coat, two cotyledons, an embryo, and an endosperm.

Correct AnswerverifiedShow Answer

A long-day (short-night) plant would most likely bloom

Correct AnswerverifiedShow Answer

A fleshy fruit is more likely to use which of the following methods of seed dispersal?

Correct AnswerverifiedShow Answer

If ethylene is applied to a bushel of apples, what is most likely to occur?

Correct AnswerverifiedShow Answer

A farmer wishes to force a normal plant to maintain a dwarf size. Which of the following plant hormones might she apply?

Correct AnswerverifiedShow Answer

In what way would a grower in the grape industry use gibberellins?

Correct AnswerverifiedShow Answer

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In a eudicot seed, the zygote becomes the _, while the _ is derived from the endosperm.

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The products of double fertilization in the _ are a 2n and a 3n _.

Correct Answer
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