Question 1

The main pollinators of flowers that are easy to locate at night are

Accepted Answer

A)  beetles.
B)  birds.
C)  bats and moths.
D)  bees.
E)  flies.F) B) and C)
G) All of the above

Question 2

Angiosperms owe their widespread distribution to their production of pollen,seeds and flowers.What is the greatest advantage to the production of seeds?

Accepted Answer

A)  It allows fertilization in the absence of water.
B)  It protects and nourishes the embryo.
C)  It is necessary for sexual reproduction.
D)  It allows fertilization in moist areas.
E)  It promotes pollination.F) C) and D)
G) All of the above

Question 3

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Accepted Answer

A)  The roots and shoots respond to auxins,though in different directions.
B)  Statoliths move in the opposite direction in roots and shoots.
C)  The absorption of light occurs only in shoots.
D)  The circadian rhythms of roots and shoots are opposite.
E)  Differences in thigmotropism occur.F) A) and D)
G) A) and C)

Question 4

A plant species is well established,has little competition,and has few consumers.Therefore,it is likely to

Accepted Answer

A)  reproduce asexually.
B)  reproduce sexually.
C)  adapt to another environment with immediate genetic changes.
D)  adapt to its environment with immediate genetic changes.
E)  produce variable offspring.F) C) and D)
G) A) and E)

Question 5

Clover will flower if exposed to 8 hours of dark and 16 hours of light.It will not flower if exposed to 16 hours of dark and 8 hours of light.However,if the 16 hours of dark is interrupted with a brief period of light the clover will flower.Which of the following will trigger clover to flower?

Accepted Answer

A)  short dark periods
B)  long dark periods
C)  short light periods
D)  long light periodsE) B) and C)
F) A) and C)

Question 6

Whorl one,the outermost whorl of a flower,is made up of

Accepted Answer

A)  the female reproductive parts of a flower.
B)  the male reproductive parts of a flower.
C)  the sepals.
D)  the petals.
E)  the stem region.F) C) and D)
G) C) and E)

Question 7

The sporophyte generation of a plant is _________________ and produces ___________________ spores.

Accepted Answer

A)  triploid;diploid
B)  haploid;diploid
C)  triploid;haploid
D)  diploid;haploid
E)  multicellular;diploidF) A) and B)
G) C) and D)

Question 8

What is a seed?

Accepted Answer

A)  a diploid spore
B)  a haploid gametophyte
C)  a mature sporophyte
D)  a mature pollen
E)  a diploid embryoF) A) and D)
G) A) and C)

Question 9

If a gardener cuts the apical meristem of a plant,lateral buds begin to grow which causes a bushier shape to develop.This is because the apical meristem normally secretes auxins that do which of the following?

Accepted Answer

A)  stimulate the growth of lateral buds
B)  suppress the growth of the apical meristem
C)  stimulate the growth of the apical meristem
D)  suppress the growth of lateral buds
E)  stimulate the growth of rootsF) B) and D)
G) B) and C)

Question 10

What is the normal function of fruits?

Accepted Answer

A)  to protect seeds only
B)  to disperse seeds only
C)  to attract pollinators only
D)  to protect and disperse seeds
E)  to attract pollinators and protect seedsF) A) and B)
G) A) and C) D

Question 11

The type of fruit derived from tightly clustered flowers whose ovaries fuse is a(n) __________ fruit.

Accepted Answer

A)  simple
B)  double
C)  multiple
D)  aggregate
E)  axillaryF) A) and E)
G) None of the above

Question 12

Why is most angiosperm reproduction sexual,not asexual?

Accepted Answer

A)  Sexual reproduction forms genetically-different offspring than the parents.
B)  Sexual reproduction requires less energy than asexual reproduction.
C)  Asexual reproduction forms haploid offspring.
D)  Asexual reproduction forms triploid offspring.
E)  Most angiosperm reproduction is asexual.F) D) and E)
G) None of the above A

Question 13

In the late 1870s,Charles Darwin and his son Francis discovered that if the tip of the grass was covered phototropism did not occur,even though the rest of the grass was exposed to light.However,if the rest of the plant was covered and only the tip exposed to light the grass bent a few centimeters below the tip.How could light striking the tip of the grass cause bending a few centimeters from the tip?

Accepted Answer

A)  The light must be striking the cells that bend as well.
B)  A hormone must be carrying the response from the tip to the site of bending.
C)  The bending must start at the tip and move down the entire blade of grass.
D)  Bending is independent of the source of light.
E)  The light is being transmitted from the tip to cells at the site of bending.F) A) and D)
G) B) and D)

Question 14

The root and shoot apical meristems form at the same position in the plant embryo.

Accepted Answer

A) True 
 B)False

Question 15

How are animals involved in the life cycle of plants?

Accepted Answer

A)  as pollinators only
B)  as pollinators and seed dispersers
C)  as seed dispersers only
D)  as seed germinators only
E)  as seed germinators and dispersersF) A) and C)
G) D) and E) B

Question 16

In the late 1870s,Charles Darwin and his son Francis discovered that if the tip of the grass was covered,phototropism did not occur,even though the rest of the grass was exposed to light.However,if the rest of the plant was covered and only the tip exposed to light,the grass bent a few centimeters below the tip.Which of the following was sensing the light?

Accepted Answer

A)  auxin-producing cells in the tip of the grass
B)  auxin-detecting cells in the tip of the grass
C)  auxin-producing cells a few centimeters below the tip of the grass
D)  auxin-detecting cells a few centimeters below the tip of the grassE) A) and B)
F) A) and C)

Question 17

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots respond to gravity?

Accepted Answer

A)  by the absorption of light by phytochromes
B)  through circadian rhythms
C)  through thigmotropism
D)  by sensing the photoperiod
E)  by the movement of statoliths within the cellF) C) and D)
G) C) and E)

Question 18

Pollination is the transfer of pollen from a(n) _______________ to a receptive ________________.

Accepted Answer

A)  ovary;stigma
B)  stigma;ovary
C)  stigma;anther
D)  anther;stigma
E)  None of the answers are correct.F) None of the above
G) A) and B)

Question 19

The first step in the germination of a plant seed is the absorption of water.

Accepted Answer

A) True 
 B)False

Question 20

The plant hormone that stimulates cell division in seeds and fruits is

Accepted Answer

A)  cytokinin.
B)  gibberellin.
C)  auxin.
D)  ethylene.
E)  abscisic acid.F) B) and E)
G) A) and E)

Exam 22: Reproduction and Development of Flowering Plants

The main pollinators of flowers that are easy to locate at night are

Correct Answer
verified

Angiosperms owe their widespread distribution to their production of pollen,seeds and flowers.What is the greatest advantage to the production of seeds?

Correct Answer
verified

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Correct Answer
verified

A plant species is well established,has little competition,and has few consumers.Therefore,it is likely to

Correct Answer
verified

Clover will flower if exposed to 8 hours of dark and 16 hours of light.It will not flower if exposed to 16 hours of dark and 8 hours of light.However,if the 16 hours of dark is interrupted with a brief period of light the clover will flower.Which of the following will trigger clover to flower?

Correct Answer
verified

Whorl one,the outermost whorl of a flower,is made up of

Correct Answer
verified

The sporophyte generation of a plant is _ and produces ___ spores.

Correct Answer
verified

What is a seed?

Correct Answer
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If a gardener cuts the apical meristem of a plant,lateral buds begin to grow which causes a bushier shape to develop.This is because the apical meristem normally secretes auxins that do which of the following?

Correct Answer
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What is the normal function of fruits?

Correct Answer
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D

The type of fruit derived from tightly clustered flowers whose ovaries fuse is a(n) __________ fruit.

Correct Answer
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Why is most angiosperm reproduction sexual,not asexual?

Correct Answer
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A

Correct Answer
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The root and shoot apical meristems form at the same position in the plant embryo.

Correct Answer
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How are animals involved in the life cycle of plants?

Correct Answer
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B

Correct Answer
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As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots respond to gravity?

Correct Answer
verified

Pollination is the transfer of pollen from a(n) _ to a receptive __.

Correct Answer
verified

The first step in the germination of a plant seed is the absorption of water.

Correct Answer
verified

The plant hormone that stimulates cell division in seeds and fruits is

Correct Answer
verified

Exam 22: Reproduction and Development of Flowering Plants

The main pollinators of flowers that are easy to locate at night are

Correct AnswerverifiedShow Answer

Angiosperms owe their widespread distribution to their production of pollen,seeds and flowers.What is the greatest advantage to the production of seeds?

Correct AnswerverifiedShow Answer

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Correct AnswerverifiedShow Answer

A plant species is well established,has little competition,and has few consumers.Therefore,it is likely to

Correct AnswerverifiedShow Answer

Clover will flower if exposed to 8 hours of dark and 16 hours of light.It will not flower if exposed to 16 hours of dark and 8 hours of light.However,if the 16 hours of dark is interrupted with a brief period of light the clover will flower.Which of the following will trigger clover to flower?

Correct AnswerverifiedShow Answer

Whorl one,the outermost whorl of a flower,is made up of

Correct AnswerverifiedShow Answer

The sporophyte generation of a plant is _________________ and produces ___________________ spores.

Correct AnswerverifiedShow Answer

What is a seed?

Correct AnswerverifiedShow Answer

If a gardener cuts the apical meristem of a plant,lateral buds begin to grow which causes a bushier shape to develop.This is because the apical meristem normally secretes auxins that do which of the following?

Correct AnswerverifiedShow Answer

What is the normal function of fruits?

Correct AnswerverifiedD

The type of fruit derived from tightly clustered flowers whose ovaries fuse is a(n) __________ fruit.

Correct AnswerverifiedShow Answer

Why is most angiosperm reproduction sexual,not asexual?

Correct AnswerverifiedA

Correct AnswerverifiedShow Answer

The root and shoot apical meristems form at the same position in the plant embryo.

Correct AnswerverifiedShow Answer

How are animals involved in the life cycle of plants?

Correct AnswerverifiedB

Correct AnswerverifiedShow Answer

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots respond to gravity?

Correct AnswerverifiedShow Answer

Pollination is the transfer of pollen from a(n) _______________ to a receptive ________________.

Correct AnswerverifiedShow Answer

The first step in the germination of a plant seed is the absorption of water.

Correct AnswerverifiedShow Answer

The plant hormone that stimulates cell division in seeds and fruits is

Correct AnswerverifiedShow Answer

Correct Answer
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The sporophyte generation of a plant is _ and produces ___ spores.

Correct Answer
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D

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A

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B

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Pollination is the transfer of pollen from a(n) _ to a receptive __.

Correct Answer
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Correct Answer
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