Question 1

Figure 30.19C
  
-Which plant hormone listed below is responsible for the symbiotic relationship shown in the accompanying figure?​

Accepted Answer

A)  ​auxin 
B)  ​gibberellin 
C)  ​cytokinin 
D)  ​jasmonic acid 
E)  ​abscisic acid 
A)  ​auxin 
B)  ​gibberellin 
C)  ​cytokinin 
D)  ​jasmonic acid 
E)  ​abscisic acid

Question 2

The plant hormone that promotes fruit ripening 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 3

Auxin is made mainly in ____ and in young leaves, and transported elsewhere.

Accepted Answer

A)  ​chloroplasts 
B)  ​lateral buds 
C)  ​lateral meristems 
D)  ​root apical meristems 
E)  ​shoot apical meristems 
A)  ​chloroplasts 
B)  ​lateral buds 
C)  ​lateral meristems 
D)  ​root apical meristems 
E)  ​shoot apical meristems

Question 4

Choose the one most appropriate answer for each. Each letter will be used once.​
-phototropism

Accepted Answer

A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds 
A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds

Question 5

Cycles of biological activity that are repeated every 24 hours are called ____.

Accepted Answer

A)  ​systemic acquired rhythms 
B)  ​tropisms 
C)  ​physiological requirements 
D)  ​circadian rhythms 
E)  ​photoperiods 
A)  ​systemic acquired rhythms 
B)  ​tropisms 
C)  ​physiological requirements 
D)  ​circadian rhythms 
E)  ​photoperiods

Question 6

The flavonoid called epicatechin, found in cocoa, is probably responsible for the absence of __________ among the Kuna tribe.

Accepted Answer

​
heart di

Question 7

The mechanism that causes a vine's tendrils to grow around an object, such as a wire fenceline, is called ____.

Accepted Answer

A)  ​thigmotropism 
B)  ​phototropism 
C)  ​gravitropism 
D)  ​vernalization 
E)  ​photoperiodism 
A)  ​thigmotropism 
B)  ​phototropism 
C)  ​gravitropism 
D)  ​vernalization 
E)  ​photoperiodism

Question 8

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 9

In trees, such as the horse chestnut, the abscission of leaves and fruits in the fall is mediated by ____.

Accepted Answer

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

Question 10

Choose the one most appropriate answer for each. Each letter will be used once.​
-phytochrome

Accepted Answer

A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds 
A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds

Question 11

Deciduous trees in North America are dormant during winter months because ____.

Accepted Answer

A)  ​they receive no precipitation during winter 
B)  ​photosynthesis cannot occur during winter 
C)  ​this offers a way to survive the extended drought-like conditions 
D)  ​the cold temperatures would otherwise damage leaves and buds 
E)  ​they have no leaves during winter months 
A)  ​they receive no precipitation during winter 
B)  ​photosynthesis cannot occur during winter 
C)  ​this offers a way to survive the extended drought-like conditions 
D)  ​the cold temperatures would otherwise damage leaves and buds 
E)  ​they have no leaves during winter months

Question 12

Plants make ____, which are similar to female sex hormones in mammals but have nothing to do with sexual reproduction in plants.

Accepted Answer

A)  ​estrogens 
B)  ​phytoestrogens 
C)  ​auxins 
D)  ​cytokinins 
E)  ​gibberellins 
A)  ​estrogens 
B)  ​phytoestrogens 
C)  ​auxins 
D)  ​cytokinins 
E)  ​gibberellins

Question 13

Phytochrome is converted from the inactive to the active form by being exposed to light of what color?

Accepted Answer

A)  ​far red 
B)  ​red 
C)  ​yellow 
D)  ​blue 
E)  ​violet 
A)  ​far red 
B)  ​red 
C)  ​yellow 
D)  ​blue 
E)  ​violet

Question 14

Respond to the following statements in reference to the five plant hormones listed below.​
-This hormone promotes bud and seed dormancy.

Accepted Answer

A) ​auxins 
B) ​gibberellins 
C) ​cytokinins 
D) ​abscisic acid 
E) ​ethylene 
A) ​auxins 
B) ​gibberellins 
C) ​cytokinins 
D) ​abscisic acid 
E) ​ethylene

Question 15

Abscisic acid promotes bud and seed __________, and it limits water loss by promoting stomatal closure.

Accepted Answer

The answer of Abscisic acid promotes bud and seed __________,...

Question 16

The pigment most involved with 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 17

Gravity-sensing mechanisms of many organisms are based on ____.

Accepted Answer

A)  ​spicules 
B)  ​statoliths 
C)  ​uric acid crystals 
D)  ​sclereids 
E)  ​nematocysts 
A)  ​spicules 
B)  ​statoliths 
C)  ​uric acid crystals 
D)  ​sclereids 
E)  ​nematocysts

Question 18

The flowers of plants pollinated by night-flying bats open, secrete nectar, and release fragrance only at night. The mechanism that controls this is called ____.

Accepted Answer

A)  ​thigmotropism 
B)  ​heliotropism 
C)  ​phototropism 
D)  ​photoperiodism 
E)  ​circadian rhythm 
A)  ​thigmotropism 
B)  ​heliotropism 
C)  ​phototropism 
D)  ​photoperiodism 
E)  ​circadian rhythm

Question 19

Choose the one most appropriate answer for each. Each letter will be used once.​
-auxin

Accepted Answer

A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds 
A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds

Question 20

Choose the one most appropriate answer for each. Each letter will be used once.​
-abscisic acid

Accepted Answer

A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds 
A) ​growth response that orients parts of a plant in a direction influenced by light 
B) ​plays a critical role in apical dominance 
C) ​an organism's response to changes in length of day relative to night 
D) ​organelle involved in sensing gravity 
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F)​low-temperature stimulation of flowering
G)​closes stomata in times of stress
H)​stimulates fruit ripening
I)​flowers only when hours of darkness fall below a critical value
J)​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K)​occurring on a 24-hour cycle
L)​flowers only when hours of darkness are greater than some critical value
M)​activates systemic acquired resistance
N)​stimulates growth of lateral buds
O)​mobilizes food reserves in germinating seeds

Exam 30: Communication Strategies in Plants

Figure 30.19C -Which plant hormone listed below is responsible for the symbiotic relationship shown in the accompanying figure?​

The plant hormone that promotes fruit ripening is ____.

Auxin is made mainly in ____ and in young leaves, and transported elsewhere.

Choose the one most appropriate answer for each. Each letter will be used once.​ -phototropism

Cycles of biological activity that are repeated every 24 hours are called ____.

The flavonoid called epicatechin, found in cocoa, is probably responsible for the absence of __________ among the Kuna tribe.

The mechanism that causes a vine's tendrils to grow around an object, such as a wire fenceline, is called ____.

Downward bending of a seedling root can be blocked by ____.

In trees, such as the horse chestnut, the abscission of leaves and fruits in the fall is mediated by ____.

Choose the one most appropriate answer for each. Each letter will be used once.​ -phytochrome

Deciduous trees in North America are dormant during winter months because ____.

Plants make ____, which are similar to female sex hormones in mammals but have nothing to do with sexual reproduction in plants.

Phytochrome is converted from the inactive to the active form by being exposed to light of what color?

Respond to the following statements in reference to the five plant hormones listed below.​ -This hormone promotes bud and seed dormancy.

Abscisic acid promotes bud and seed __________, and it limits water loss by promoting stomatal closure.

The pigment most involved with photoperiodism is ____.

Gravity-sensing mechanisms of many organisms are based on ____.

The flowers of plants pollinated by night-flying bats open, secrete nectar, and release fragrance only at night. The mechanism that controls this is called ____.

Choose the one most appropriate answer for each. Each letter will be used once.​ -auxin

Choose the one most appropriate answer for each. Each letter will be used once.​ -abscisic acid

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

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

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Animal Tissues

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

Filters

Figure 30.19C -Which plant hormone listed below is responsible for the symbiotic relationship shown in the accompanying figure?

Choose the one most appropriate answer for each. Each letter will be used once. -phototropism

Choose the one most appropriate answer for each. Each letter will be used once. -phytochrome

Respond to the following statements in reference to the five plant hormones listed below. -This hormone promotes bud and seed dormancy.

Choose the one most appropriate answer for each. Each letter will be used once. -auxin

Choose the one most appropriate answer for each. Each letter will be used once. -abscisic acid