Question 1

A long day/short night plant would most likely

Accepted Answer

A)   bloom only in the fall.
B)   bloom only in the spring.
C)   bloom only in the summer.
D)   bloom only at night.
E)   bloom only during the day.F) None of the above
G) A) and E)

Question 2

The application of abscisic acid to a plant may prevent fruit maturation.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following pharmaceutical products can be produced by genetically modified plants?

Accepted Answer

A)   All of the following are produced by plants.
B)   antigens
C)   antibodies
D)   hormones
E)   therapeutic proteinsF) A) and C)
G) A) and B)

Question 4

Which of the following is not an effect of gibberellins?

Accepted Answer

A)   stem elongation between nodes
B)   cell elongation
C)   breaking of dormancy
D)   ripening of fruit
E)   excessive stem elongationF) None of the above
G) B) and D)

Question 5

A plant that is dioecious is incapable of which of the following?

Accepted Answer

A)   cross-pollination
B)   double fertilization
C)   self-pollination
D)   gametophyte production
E)   pollen productionF) A) and E)
G) A) and C)

Question 6

An incomplete flower may lack a carpel.

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

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 E)
G) A) and D)

Question 9

Gametophytes of flowering plants are produced within the flower.

Accepted Answer

A) True 
 B)False

Question 10

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) B) and E)
G) C) and D)

Question 11

Plants are naturally able to reproduce asexually because they contain meristematic tissue.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Which cellular structure enables a root cell to grow downward?

Accepted Answer

A)   amyloplast
B)   chromoplast
C)   auxin
D)   chloroplast
E)   nucleusF) B) and D)
G) D) and E)

Question 14

Which of the following is not a method of asexual reproduction in plants?

Accepted Answer

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

Question 15

Which of the following is not an advantage of genetically engineered plants?

Accepted Answer

A)   decrease yield
B)   herbicide resistance
C)   salt tolerance
D)   drought tolerance
E)   disease protectionF) B) and E)
G) C) and D)

Question 16

Monocot seeds differ from eudicot seeds because in monocot seeds

Accepted Answer

A)   the cotyledons absorb the stored food of the endosperm.
B)   the endosperm is retained.
C)   there are two cotyledons instead of one.
D)   there is no seed coat.
E)   the endosperm develops into the embryo.F) B) and E)
G) B) and D)

Question 17

The application of auxin to a seed may cause it to germinate.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

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

Question 19

Plants detect the presence of light using ________,whereas day length is detected using ______.

Accepted Answer

A)   auxin; gibberellin
B)   phytochrome; auxin
C)   auxin; phytochrome
D)   phytochrome; gibberellin
E)   gibberellin; auxinF) C) and D)
G) C) and E)

Question 20

Which of the following is not 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)   supporting the plantF) None of the above
G) B) and C)

Exam 21: Plant Responses and Reproduction

An incomplete flower may lack a carpel.

Correct AnswerverifiedShow Answer

Gametophytes of flowering plants are produced within the flower.

Correct AnswerverifiedShow Answer

A long day/short night plant would most likely

Correct AnswerverifiedShow Answer

Which of the following pharmaceutical products can be produced by genetically modified plants?

Correct AnswerverifiedShow Answer

The application of abscisic acid to a plant may prevent fruit maturation.

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

Which cellular structure enables a root cell to grow downward?

Correct AnswerverifiedShow Answer

The application of auxin to a seed may cause it to germinate.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Plants detect the presence of light using ________,whereas day length is detected using ______.

Correct AnswerverifiedShow Answer

A plant that is dioecious is incapable of which of the following?

Correct AnswerverifiedShow Answer

Which of the following is not an effect of gibberellins?

Correct AnswerverifiedShow Answer

Which of the following is not an advantage of genetically engineered plants?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Plants are naturally able to reproduce asexually because they contain meristematic tissue.

Correct AnswerverifiedShow Answer

Monocot seeds differ from eudicot seeds because in monocot seeds

Correct AnswerverifiedShow Answer

Which of the following is not a method of asexual reproduction in plants?

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

Which of the following is not a function of the flower in an angiosperm?

Correct AnswerverifiedShow Answer

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Plants detect the presence of light using __,whereas day length is detected using .

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

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

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