Question 1

On a hot,dry day a plant closes its stomata thereby conserving water.Which plant hormone is responsible for the closing of the stomata?

Accepted Answer

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

Question 2

The flowers of the ash tree are small,white,and have a foul odor.These flowers are most likely ___ pollinated.

Accepted Answer

A)  bee 
B)  bat 
C)  fly 
D)  bird 
E)  wind 
A)  bee 
B)  bat 
C)  fly 
D)  bird 
E)  wind

Question 3

Match the plant hormone with its description.
 a.ethylene
b.cytokinin
c.auxin
d.abscisic acid
e.gibberellin
-stimulates cell expansion

Accepted Answer

The answer of Match the plant hormone with its description.
...

Question 4

Which of the following is NOT caused by the positive feedback loop of ethylene action?

Accepted Answer

A)  fruit ripening 
B)  leaf abscission 
C)  germination 
D)  cell expansion 
E)  all of these are caused by the positive feedback loop of ethylene action 
A)  fruit ripening 
B)  leaf abscission 
C)  germination 
D)  cell expansion 
E)  all of these are caused by the positive feedback loop of ethylene action

Question 5

One of the important effects of ethylene is

Accepted Answer

A)  the breakdown of cells. 
B)  cell elongation. 
C)  cell division in meristems. 
D)  activation of protein synthesis. 
E)  inhibition of all of these processes. 
A)  the breakdown of cells. 
B)  cell elongation. 
C)  cell division in meristems. 
D)  activation of protein synthesis. 
E)  inhibition of all of these processes.

Question 6

Choose the one most appropriate answer for each.
a.haploid cells in the anther
b.reduction of chromosome number by one-half
c.after fertilization,ripens into fruit tissue
d.two nuclei in the ovule that unite with a single sperm
e.after fertilization,will form a seed
f.modified leaf with pigments and fragrance-producing cells
g.mature microspore
h.female reproductive organ
i.landing platform for pollen
j.pollen-bearing structure
k.haploid cells in the ovule
l.outermost whorl of flower parts on a receptacle
m.female gametophyte
-carpel

Accepted Answer

The answer of Choose the one most appropriate answer for...

Question 7

Which of the following structures found in a monocot seed is NOT found in a eudicot seed?

Accepted Answer

A)  seed coat 
B)  endosperm 
C)  cotyledon 
D)  coleoptile 
E)  all of these structures are found in both monocot and eudicot seeds 
A)  seed coat 
B)  endosperm 
C)  cotyledon 
D)  coleoptile 
E)  all of these structures are found in both monocot and eudicot seeds

Question 8

As a plant embryo develops,it receives nutrients from

Accepted Answer

A)  the parent plant. 
B)  endosperm. 
C)  the cotyledons. 
D)  the megaspore mother cell. 
E)  the style. 
A)  the parent plant. 
B)  endosperm. 
C)  the cotyledons. 
D)  the megaspore mother cell. 
E)  the style.

Question 9

Photochrome is the pigment responsible for

Accepted Answer

A)  thigmotropism. 
B)  phototropism. 
C)  gravitropism 
D)  photoperiodism. 
E)  senescence. 
A)  thigmotropism. 
B)  phototropism. 
C)  gravitropism 
D)  photoperiodism. 
E)  senescence.

Question 10

Which of the following flower structures are incorrectly paired?
a.
filament-anther
b.
style-ovary
c.
receptacle-flower
d.
all of these are correctly paired
e.
none of these are correctly paired

Accepted Answer

B
filaments hold up

Question 11

Of all the plant hormones,which one is a gas?

Accepted Answer

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

Question 12

In which of the following is auxin involved?

Accepted Answer

A)  embryonic development 
B)  formation of plant parts 
C)  formation of lateral roots 
D)  differentiation of vascular tissues 
E)  auxin is involved in all of these 
A)  embryonic development 
B)  formation of plant parts 
C)  formation of lateral roots 
D)  differentiation of vascular tissues 
E)  auxin is involved in all of these

Question 13

Which of the following is NOT a characteristic of cytokinin?

Accepted Answer

A)  it affects meristem cell division 
B)  it stimulates the development of lateral buds 
C)  it inhibits the development of lateral roots 
D)  it always has the same affect on cells as auxin does 
E)  more than one of these is NOT a characteristic of cytokinin 
A)  it affects meristem cell division 
B)  it stimulates the development of lateral buds 
C)  it inhibits the development of lateral roots 
D)  it always has the same affect on cells as auxin does 
E)  more than one of these is NOT a characteristic of cytokinin

Question 14

The place where pollination occurs is the

Accepted Answer

A)  stigma. 
B)  micropyle. 
C)  anther. 
D)  receptacle. 
E)  style. 
A)  stigma. 
B)  micropyle. 
C)  anther. 
D)  receptacle. 
E)  style.

Question 15

Which of the following is true of strawberry fruits?

Accepted Answer

A)  they are aggregate fruits 
B)  they are dry fruits 
C)  they are not berries 
D)  all of these (a through c) are true of strawberry fruits 
E)  all of these (a through c) are NOT true of strawberry fruits except they are aggregate fruits 
A)  they are aggregate fruits 
B)  they are dry fruits 
C)  they are not berries 
D)  all of these (a through c) are true of strawberry fruits 
E)  all of these (a through c) are NOT true of strawberry fruits except they are aggregate fruits

Question 16

Match the plant hormone with its description.
 a.ethylene
b.cytokinin
c.auxin
d.abscisic acid
e.gibberellin
-stimulates cell division in shoot apical meristems

Accepted Answer

The answer of Match the plant hormone with its description.
...

Question 17

-The portion of the flower that is attractive to pollinators is at letter _____.

Accepted Answer

The answer of  
-The portion of the flower that...

Question 18

Which of the following structures in a flowering plant life cycle is directly formed by meiosis

Accepted Answer

A)  microspores and megaspores 
B)  sperm and eggs 
C)  male and female gametophytes 
D)  male and female sporophytes 
E)  all of these structures are formed directly by meiosis 
A)  microspores and megaspores 
B)  sperm and eggs 
C)  male and female gametophytes 
D)  male and female sporophytes 
E)  all of these structures are formed directly by meiosis

Question 19

Fuchsias have flowers which are brightly colored,unscented,and have long floral tubes.Fuchsia flowers are most likely pollinated by ___.

Accepted Answer

A)  bees 
B)  butterflies 
C)  hummingbirds 
D)  hummingbirds and butterflies 
E)  bees and butterflies 
A)  bees 
B)  butterflies 
C)  hummingbirds 
D)  hummingbirds and butterflies 
E)  bees and butterflies

Question 20

In a eudicot seed,which structure emerges first?

Accepted Answer

A)  embryonic shoot 
B)  embryonic root 
C)  coleoptile 
D)  cotyledons 
E)  the embryonic root and shoot emerge at the same time 
A)  embryonic shoot 
B)  embryonic root 
C)  coleoptile 
D)  cotyledons 
E)  the embryonic root and shoot emerge at the same time

Exam 28: Plant Reproduction and Development

On a hot,dry day a plant closes its stomata thereby conserving water.Which plant hormone is responsible for the closing of the stomata?

The flowers of the ash tree are small,white,and have a foul odor.These flowers are most likely ___ pollinated.

Match the plant hormone with its description. a.ethylene b.cytokinin c.auxin d.abscisic acid e.gibberellin -stimulates cell expansion

Which of the following is NOT caused by the positive feedback loop of ethylene action?

One of the important effects of ethylene is

Which of the following structures found in a monocot seed is NOT found in a eudicot seed?

As a plant embryo develops,it receives nutrients from

Photochrome is the pigment responsible for

Which of the following flower structures are incorrectly paired? a. filament-anther b. style-ovary c. receptacle-flower d. all of these are correctly paired e. none of these are correctly paired

Of all the plant hormones,which one is a gas?

In which of the following is auxin involved?

Which of the following is NOT a characteristic of cytokinin?

The place where pollination occurs is the

Which of the following is true of strawberry fruits?

Match the plant hormone with its description. a.ethylene b.cytokinin c.auxin d.abscisic acid e.gibberellin -stimulates cell division in shoot apical meristems

-The portion of the flower that is attractive to pollinators is at letter _____.

Which of the following structures in a flowering plant life cycle is directly formed by meiosis

Fuchsias have flowers which are brightly colored,unscented,and have long floral tubes.Fuchsia flowers are most likely pollinated by ___.

In a eudicot seed,which structure emerges first?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

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