Question 1

If you wanted to increase cell division in the seeds,roots,young leaves,and fruits of a plant,which hormone would you add?

Accepted Answer

A)  cytokinin 
B)  gibberellin 
C)  auxin 
D)  ethylene 
E)  abscisic acid 
A)  cytokinin 
B)  gibberellin 
C)  auxin 
D)  ethylene 
E)  abscisic acid

Question 2

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; diploid 
A)  triploid; diploid 
B)  haploid; diploid 
C)  triploid; haploid 
D)  diploid; haploid 
E)  multicellular; diploid

Question 3

You plant a seed in a pot containing soil,and then add water and place the pot under a light.In the first week,before the seedling even emerged from the soil,carbon dioxide levels increased in the closed chamber.The developing plant was using which of the following as a source of energy during this first week?

Accepted Answer

A)  light 
B)  starch from the seed 
C)  water from the soil 
D)  sugars from the soil 
E)  nutrients from the soil 
A)  light 
B)  starch from the seed 
C)  water from the soil 
D)  sugars from the soil 
E)  nutrients from the soil

Question 4

A sweet,juicy red berry is probably dispersed by attaching to an animal's fur.

Accepted Answer

A) True 
 B)False

Question 5

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 roots 
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 roots

Question 6

As discussed in the Investigating Life feature,scientists tested the hypothesis that chili peppers are hot

Accepted Answer

A)  to deter seed destroyers without affecting dispersers. 
B)  to deter all animals from destroying the seeds. 
C)  to promote dispersion when animals drop the hot fruit. 
D)  for a reason unrelated to seed dispersal or destruction. 
E)  to promote pollination of the peppers. 
A)  to deter seed destroyers without affecting dispersers. 
B)  to deter all animals from destroying the seeds. 
C)  to promote dispersion when animals drop the hot fruit. 
D)  for a reason unrelated to seed dispersal or destruction. 
E)  to promote pollination of the peppers.

Question 7

Where are microspores produced in a flower?

Accepted Answer

A)  anther 
B)  corolla 
C)  sepal 
D)  ovule 
E)  stigma 
A)  anther 
B)  corolla 
C)  sepal 
D)  ovule 
E)  stigma

Question 8

Cytokinins are produced in the root apical meristem and stimulate the growth of lateral buds.How do cytokinins reach the lateral buds?

Accepted Answer

A)  through the phloem 
B)  through the xylem or phloem 
C)  through the xylem 
D)  by diffusion as a gas 
E)  through the phloem or by diffusion as a gas 
A)  through the phloem 
B)  through the xylem or phloem 
C)  through the xylem 
D)  by diffusion as a gas 
E)  through the phloem or by diffusion as a gas

Question 9

In reproduction of flowering plants,

Accepted Answer

A)  animals can disperse pollen. 
B)  animals can disperse seeds. 
C)  wind can disperse pollen. 
D)  wind can disperse seeds. 
E)  All of the answers choices are correct. 
A)  animals can disperse pollen. 
B)  animals can disperse seeds. 
C)  wind can disperse pollen. 
D)  wind can disperse seeds. 
E)  All of the answers choices are correct.

Question 10

Fruits are used to

Accepted Answer

A)  protect seeds. 
B)  disperse seeds. 
C)  attract pollinators. 
D)  protect and disperse seeds. 
E)  attract pollinators and protect seeds. 
A)  protect seeds. 
B)  disperse seeds. 
C)  attract pollinators. 
D)  protect and disperse seeds. 
E)  attract pollinators and protect seeds.

Question 11

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 triggers clover to flower?

Accepted Answer

A)  short dark periods 
B)  long dark periods 
C)  short light periods 
D)  long light periods 
E)  both long and short dark periods 
A)  short dark periods 
B)  long dark periods 
C)  short light periods 
D)  long light periods 
E)  both long and short dark periods

Question 12

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. 
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.

Question 13

You plant a seed in a pot containing soil,and then add water and place the pot under a light.After the seedling emerged,complete with two green leaves,the carbon dioxide levels decreased in the closed chamber.The developing seedling was using which of the following as a source of energy while the carbon dioxide levels were decreasing?

Accepted Answer

A)  water from the soil 
B)  starch from the seed 
C)  sugars from the soil 
D)  nutrients from the soil 
E)  light 
A)  water from the soil 
B)  starch from the seed 
C)  sugars from the soil 
D)  nutrients from the soil 
E)  light

Question 14

A directional response to touch exhibited by plants is called

Accepted Answer

A)  thigmotropism. 
B)  gravitropism. 
C)  phototropism. 
D)  organotropism. 
E)  chemotropism. 
A)  thigmotropism. 
B)  gravitropism. 
C)  phototropism. 
D)  organotropism. 
E)  chemotropism.

Question 15

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is

Accepted Answer

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

Question 16

Which is not a variable in the reproduction of flowering plants?

Accepted Answer

A)  hereditary information passed asexually 
B)  hereditary information passed sexually 
C)  hormones 
D)  gravity 
E)  seasonal changes in temperature and light 
A)  hereditary information passed asexually 
B)  hereditary information passed sexually 
C)  hormones 
D)  gravity 
E)  seasonal changes in temperature and light

Question 17

In the experiments described in the Investigating Life feature,what animals were most likely to eat the hot chilies?

Accepted Answer

A)  cactus mice 
B)  pack rats 
C)  thrashers 
D)  cactus mice and pack rats 
E)  thrashers, cactus mice, and pack rats all ate the peppers equally 
A)  cactus mice 
B)  pack rats 
C)  thrashers 
D)  cactus mice and pack rats 
E)  thrashers, cactus mice, and pack rats all ate the peppers equally

Question 18

If you examined a pea pod carefully,you would see that it was the result of one carpel.That would make it what kind of fruit?

Accepted Answer

A)  simple 
B)  double 
C)  aggregate 
D)  axillary 
E)  multiple 
A)  simple 
B)  double 
C)  aggregate 
D)  axillary 
E)  multiple

Question 19

A short-day plant flowers when nights are long.

Accepted Answer

A) True 
 B)False

Question 20

Whorl four of a flower is made up of the

Accepted Answer

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

Exam 22: Reproduction and Development of Flowering Plants

If you wanted to increase cell division in the seeds,roots,young leaves,and fruits of a plant,which hormone would you add?

The sporophyte generation of a plant is ________ and produces ________ spores.

A sweet,juicy red berry is probably dispersed by attaching to an animal's fur.

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?

As discussed in the Investigating Life feature,scientists tested the hypothesis that chili peppers are hot

Where are microspores produced in a flower?

Cytokinins are produced in the root apical meristem and stimulate the growth of lateral buds.How do cytokinins reach the lateral buds?

In reproduction of flowering plants,

Fruits are used to

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 triggers clover to flower?

A directional response to touch exhibited by plants is called

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is

Which is not a variable in the reproduction of flowering plants?

In the experiments described in the Investigating Life feature,what animals were most likely to eat the hot chilies?

If you examined a pea pod carefully,you would see that it was the result of one carpel.That would make it what kind of fruit?

A short-day plant flowers when nights are long.

Whorl four of a flower is made up of the

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The sporophyte generation of a plant is and produces spores.