Question 1

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 dispersers 
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 dispersers B

Question 2

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 seeds 
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 seeds D

Question 3

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. 
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. A

Question 4

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

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

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. 
A) beetles. 
B) birds. 
C) bats and moths. 
D) bees. 
E) flies.

Question 7

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

Question 8

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 grass 
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 grass

Question 9

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 10

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 periods 
A) short dark periods 
B) long dark periods 
C) short light periods 
D) long light periods

Question 11

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 embryo 
A) a diploid spore 
B) a haploid gametophyte 
C) a mature sporophyte 
D) a mature pollen 
E) a diploid embryo

Question 12

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 13

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. 
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.

Question 14

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 15

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

Accepted Answer

A) True 
 B)False

Question 16

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. 
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.

Question 17

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. 
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.

Question 18

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 cell 
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 cell

Question 19

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. 
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.

Question 20

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

Exam 22: Reproduction and Development of Flowering Plants

How are animals involved in the life cycle of plants?

What is the normal function of fruits?

Why is most angiosperm reproduction sexual,not asexual?

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

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

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

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

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?

What is a seed?

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

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?

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?

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

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

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

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?

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

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

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication and Cell Division

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Population Ecology

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Animal Tissues and Organ Systems

Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

Regulating Temperature, nutrients, and Body Fluids

The Immune System

Animal Reproduction and Development

Filters

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

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