Question 1

The plant hormone that promotes dormancy in some plants and seeds is

Accepted Answer

A)  abscisic acid. 
B)  auxin. 
C)  gibberellin. 
D)  ethylene. 
E)  none of these. 
A)  abscisic acid. 
B)  auxin. 
C)  gibberellin. 
D)  ethylene. 
E)  none of these.

Question 2

A mutant plant is found in which the seeds germinate far too early.Which hormone is likely involved and why?

Accepted Answer

It is likely that abscisic acid is invol

Question 3

Auxin concentration gradients

Accepted Answer

A)  appear once germination begins. 
B)  promote the transcription of an enzyme that breaks down cytokinin. 
C)  allow formation of plant parts in expected patterns. 
D)  help young cells elongate so that shoots and roots lengthen. 
E)  are described by all of these EXCEPT "appear once germination begins." 
A)  appear once germination begins. 
B)  promote the transcription of an enzyme that breaks down cytokinin. 
C)  allow formation of plant parts in expected patterns. 
D)  help young cells elongate so that shoots and roots lengthen. 
E)  are described by all of these EXCEPT "appear once germination begins."

Question 4

Downward bending of a seedling root can be blocked by

Accepted Answer

A)  moving it to a dark room. 
B)  auxin transporters. 
C)  auxin transport inhibitors. 
D)  mutations in genes that code for auxin transport proteins. 
E)  auxin transport inhibition and mutations in genes that code for auxin transport proteins. 
A)  moving it to a dark room. 
B)  auxin transporters. 
C)  auxin transport inhibitors. 
D)  mutations in genes that code for auxin transport proteins. 
E)  auxin transport inhibition and mutations in genes that code for auxin transport proteins.

Question 5

The plant hormone that promotes cell division in roots and shoots is

Accepted Answer

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

Question 6

Classification.Respond to the following statements in reference to the five plant hormones listed below.
a.auxins
b.gibberellins
c.cytokinins
d.abscisic acid
e.ethylene
-This hormone stimulates embryo formation in seeds.

Accepted Answer

The answer of Classification.Respond to the following statements in reference...

Question 7

MATCHING
Matching.Choose the one most appropriate answer for each.Some letters may not be used.
a.flower each successive year or after several years of vegetative growth
b.promotes cell elongation in stems
c.has receptor sites for a particular hormonal message
d.a hollow, cylindrical organ that protects young leaves growing within it
e.blue-green pigment that absorbs light energy
f.low-temperature stimulation of flowering
g.stimulates stomata closure and might be involved in root geotropism
h.stimulates fruit ripening
i.reproduces in spring
j.
produces only roots, stems, and leaves the first growing season and produces flowers the second year
k.occurring on a 24-hour cycle
l.
flowers in autumn
m.
a nonhormonal plant growth regulator
n.
lives for only one growing season
o.promotes stem elongation in plants
p.
pigment involved in flowering process
-coleoptile

Accepted Answer

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

Question 8

Auxins lengthen coleoptiles, shoots, and roots by promoting cell __________.

Accepted Answer

The answer of Auxins lengthen coleoptiles, shoots, and roots by...

Question 9

Root formation in stem cuttings can be improved by the application of

Accepted Answer

A)  synthetic auxins. 
B)  abscisic acid. 
C)  salicylic acid. 
D)  citric acid. 
E)  nitric acid. 
A)  synthetic auxins. 
B)  abscisic acid. 
C)  salicylic acid. 
D)  citric acid. 
E)  nitric acid.

Question 10

-The pigment responsible for photoperiodism is

Accepted Answer

A)  chlorophyll. 
B)  xanthophyll. 
C)  anthocyanin. 
D)  phytochrome. 
E)  phytoerythrin. 
A)  chlorophyll. 
B)  xanthophyll. 
C)  anthocyanin. 
D)  phytochrome. 
E)  phytoerythrin.

Question 11

What happens when a plant has 'foolish seedling' disease?

Accepted Answer

In this disease, the fungus Gibberella f

Question 12

A mutant plant that does not exhibit phototropism is found.This plant has a mutation involving what hormone?

Accepted Answer

The plant has a mutation involving auxin

Question 13

Use the figure above to answer the following questions.
-The effect of red light on phytochrome is indicated by

Accepted Answer

A)  A. 
B)  B. 
C)  C. 
D)  D. 
E)  none of these. 
A)  A. 
B)  B. 
C)  C. 
D)  D. 
E)  none of these.

Question 14

MATCHING
Matching.Choose the one most appropriate answer for each.Some letters may not be used.
a.flower each successive year or after several years of vegetative growth
b.promotes cell elongation in stems
c.has receptor sites for a particular hormonal message
d.a hollow, cylindrical organ that protects young leaves growing within it
e.blue-green pigment that absorbs light energy
f.low-temperature stimulation of flowering
g.stimulates stomata closure and might be involved in root geotropism
h.stimulates fruit ripening
i.reproduces in spring
j.
produces only roots, stems, and leaves the first growing season and produces flowers the second year
k.occurring on a 24-hour cycle
l.
flowers in autumn
m.
a nonhormonal plant growth regulator
n.
lives for only one growing season
o.promotes stem elongation in plants
p.
pigment involved in flowering process
-vernalization

Accepted Answer

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

Question 15

MATCHING
Matching.Choose the one most appropriate answer for each.Some letters may not be used.
a.flower each successive year or after several years of vegetative growth
b.promotes cell elongation in stems
c.has receptor sites for a particular hormonal message
d.a hollow, cylindrical organ that protects young leaves growing within it
e.blue-green pigment that absorbs light energy
f.low-temperature stimulation of flowering
g.stimulates stomata closure and might be involved in root geotropism
h.stimulates fruit ripening
i.reproduces in spring
j.
produces only roots, stems, and leaves the first growing season and produces flowers the second year
k.occurring on a 24-hour cycle
l.
flowers in autumn
m.
a nonhormonal plant growth regulator
n.
lives for only one growing season
o.promotes stem elongation in plants
p.
pigment involved in flowering process
-abscisic acid

Accepted Answer

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

Question 16

Which of the following matches of plant hormone to agricultural application is INCORRECT?

Accepted Answer

A)  abscisic acid; becomes active when crops are subjected to drought 
B)  ethylene; permits unripe fruit to be shipped without damage for later ripening at distribution centers 
C)  synthetic auxins; stimulates corn stalks to elongate 
D)  cytokinins; induces apples to ripen 
E)  gibberellins; stimulates roses to bloom 
A)  abscisic acid; becomes active when crops are subjected to drought 
B)  ethylene; permits unripe fruit to be shipped without damage for later ripening at distribution centers 
C)  synthetic auxins; stimulates corn stalks to elongate 
D)  cytokinins; induces apples to ripen 
E)  gibberellins; stimulates roses to bloom

Question 17

Perhaps a plant's greatest liability is its inability to

Accepted Answer

A)  produce growth hormones. 
B)  use aerobic respiration. 
C)  move when conditions around it deteriorate. 
D)  produce its own lipids and proteins. 
E)  respond to dwindling supplies of nutrients and water. 
A)  produce growth hormones. 
B)  use aerobic respiration. 
C)  move when conditions around it deteriorate. 
D)  produce its own lipids and proteins. 
E)  respond to dwindling supplies of nutrients and water.

Question 18

Use the figure above to answer the following questions.
-Gene transcription is induced by

Accepted Answer

A)  A. 
B)  B. 
C)  C. 
D)  D. 
E)  none of these. 
A)  A. 
B)  B. 
C)  C. 
D)  D. 
E)  none of these.

Question 19

__________ and cues from the environment coordinate plant development, which is the formation and growth of tissues and parts in predictable patterns.

Accepted Answer

The answer of __________ and cues from the environment coordinate...

Question 20

Gibberellins have their most dramatic effects

Accepted Answer

A)  on leaves. 
B)  in promoting abscission. 
C)  on fruit ripening. 
D)  on stem lengthening. 
E)  on flowers. 
A)  on leaves. 
B)  in promoting abscission. 
C)  on fruit ripening. 
D)  on stem lengthening. 
E)  on flowers.

Exam 30: Communication Strategies in Plants

The plant hormone that promotes dormancy in some plants and seeds is

A mutant plant is found in which the seeds germinate far too early.Which hormone is likely involved and why?

Auxin concentration gradients

Downward bending of a seedling root can be blocked by

The plant hormone that promotes cell division in roots and shoots is

Classification.Respond to the following statements in reference to the five plant hormones listed below. a.auxins b.gibberellins c.cytokinins d.abscisic acid e.ethylene -This hormone stimulates embryo formation in seeds.

Auxins lengthen coleoptiles, shoots, and roots by promoting cell __________.

Root formation in stem cuttings can be improved by the application of

-The pigment responsible for photoperiodism is

What happens when a plant has 'foolish seedling' disease?

A mutant plant that does not exhibit phototropism is found.This plant has a mutation involving what hormone?

Use the figure above to answer the following questions. -The effect of red light on phytochrome is indicated by

Which of the following matches of plant hormone to agricultural application is INCORRECT?

Perhaps a plant's greatest liability is its inability to

Use the figure above to answer the following questions. -Gene transcription is induced by

__________ and cues from the environment coordinate plant development, which is the formation and growth of tissues and parts in predictable patterns.

Gibberellins have their most dramatic effects

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Startsphotosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information About Species

Lifes Origin and Early Evolution

Viruses and Prokaryotes

Protiststhe Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolutionthe Invertebrates

Animal Evolutionthe Chordates

Animal Evolutionhuman Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters