Question 1

In alternation of generations,a haploid gametophyte goes through mitosis to form a ____ gamete.

Accepted Answer

A)  Haploid
B)  Diploid
C)  TetraploidD) A) and B)
E) A) and C)

Question 2

Flowers and fruits are unique to:

Accepted Answer

A)  Angiosperms
B)  Bryophytes
C)  Gymnosperms
D)  Conifers
E)  CycadsF) A) and C)
G) B) and D)

Question 3

Arabidopsis thaliana is a small angiosperm related to mustard.It is commonly used in plant research experiments.In one such experiment,an antifreeze protein from a species of bacteria was inserted into the genome of Arabidopsis thaliana,and the plants exposed to freezing temperatures.Plants without the antifreeze protein had 90% mortality,while those with the antifreeze protein only had 20% mortality.If the bacterial protein functions in Arabidopsis thaliana which conclusion is supported?

Accepted Answer

A)  The bacteria can infect plants
B)  Both organisms have a nucleus
C)  All plants are tolerant of freezing
D)  Bacteria and plants could interbreed
E)  Arabidopsis thaliana and the bacteria have similar genetic materialF) A) and E)
G) C) and E)

Question 4

The part of the plant that conducts water and dissolved minerals from the roots to the leaves is the:

Accepted Answer

A)  Xylem
B)  Stomata
C)  Root
D)  Phloem
E)  CuticleF) A) and B)
G) A) and C)

Question 5

Which of the following is not a member of the gymnosperms?

Accepted Answer

A)  Conifers
B)  Ferns
C)  Gnetophytes
D)  Cycads
E)  GinkgosF) A) and D)
G) B) and C)

Question 6

Which of the following was the last to appear in the fossil record?

Accepted Answer

A)  Angiosperms (flowering plants) 
B)  Pines and other gymnosperms
C)  Ferns and other seedless vascular plants
D)  Mosses and other bryophytesE) A) and B)
F) A) and C)

Question 7

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did ferns have over bryophytes?

Accepted Answer

A)  The ferns were able to do photosynthesis
B)  The ferns were also heterotrophs
C)  Ferns have a vascular system, this allowed them to grow taller
D)  Ferns do not require water to reproduce
E)  Ferns go through alternation of generationsF) A) and E)
G) A) and C)

Question 8

In flowering plants:

Accepted Answer

A)  The gametophyte is larger than the sporophyte
B)  The gametophyte can grow independently of the sporophyte
C)  The gametophyte is both smaller than the sporophyte and can grow independently
D)  The gametophyte is smaller than the sporophyte
E)  The gametophyte is both larger than the sporophyte and can grow independentlyF) B) and D)
G) A) and D)

Question 9

Fossil evidence places the origin of angiosperms in the early Cretaceous period,at least 130 million years ago.By 100 million years ago,all of today's major lineages of angiosperms were in place.Angiosperms make up 95% of all modern plant species.Which of the following may help explain the rapid success of angiosperms?

Accepted Answer

A)  Competition with animals helped spread pollen and seeds
B)  Animals eating the plants helped to disperse both pollen and seeds
C)  Animals died off, allowing more plants to survive
D)  Animals became carnivores, allowing plants to survive
E)  Coevolution with animals helped spread pollen and seedsF) C) and E)
G) B) and C)

Question 10

Arabidopsis thaliana is a small angiosperm related to mustard.The fact that it has 139 genes that correspond to disease-causing genes in humans suggests which of the following?

Accepted Answer

A)  Arabidopsis thaliana can cause diseases in humans
B)  Arabidopsis thaliana and humans can swap genes through transduction
C)  Humans and Arabidopsis thaliana share a common ancestor
D)  Human and Arabidopsis thaliana cells have the same organelles
E)  Arabidopsis thaliana evolved from humansF) B) and E)
G) A) and E)

Question 11

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did gymnosperms have over ferns?

Accepted Answer

A)  Gymnosperms produce pollen and do not require water to reproduce
B)  Gymnosperms go through alternation of generations
C)  Gymnosperms have a vascular system, which allowed them to grow taller
D)  The gymnosperms can grow larger gametophytes
E)  Gymnosperms can produce flowers and fruits to aid in seed dispersalF) A) and B)
G) A) and C)

Question 12

Cycads are:

Accepted Answer

A)  Trees that produce flowers
B)  Bryophytes
C)  Trees that produce large cones
D)  Algae
E)  FernsF) A) and E)
G) B) and C)

Question 13

In dry weather plants reduce water loss by closing their:

Accepted Answer

A)  Stomata
B)  Cuticle
C)  Cell membranes
D)  Vascular tissues
E)  None of the above are correctF) A) and D)
G) A) and E)

Question 14

The structure of the angiosperm that supplies nutrients to the germinating seedling is the:

Accepted Answer

A)  Endosperm
B)  Fruit
C)  Seed coat
D)  Spore coat
E)  Pollen grainF) A) and B)
G) C) and E)

Question 15

Molecular evidence suggests that plants and green algae do not descend from a common ancestor.

Accepted Answer

A) True 
 B)False

Question 16

The term gymnosperm literally means:

Accepted Answer

A)  Clothed ovule
B)  Naked seed
C)  Naked ovule
D)  Clothed seed
E)  Clothed spermF) B) and D)
G) A) and D)

Question 17

A gaseous hormone produced by plants that helps control fruit ripening is:

Accepted Answer

A)  Dextrose
B)  Carbon dioxide
C)  Chlorophyll
D)  Carotene
E)  EthyleneF) A) and B)
G) A) and C)

Question 18

Plants and algae most recently shared a common ancestor 480 million years ago,and plants colonized land shortly after that.In sexual reproduction,an alga simply releases gametes into the water,and the current carries the sex cells to another individual.What adaptation did plants have to make in reproduction when they moved to dry land?

Accepted Answer

A)  Development of stomata
B)  Development of vascular tissue
C)  Production of a cuticle
D)  Production of pollen
E)  Production of ligninF) A) and B)
G) A) and E)

Question 19

In plants:

Accepted Answer

A)  The diploid zygote develops into the sporophyte
B)  The haploid zygote develops into the sporophyte
C)  The haploid gametophyte develops into the sporophyte
D)  The diploid zygote develops into the gametophyte
E)  The haploid gametophyte produces gametes by meiosisF) C) and E)
G) B) and D)

Question 20

A plant embryo (young sporophyte) packaged with a food supply in a tough outer coat is a:

Accepted Answer

A)  Gemmae
B)  Pollen grain
C)  Seed
D)  Sperm
E)  FruitF) B) and E)
G) B) and D)

Exam 18: Plants

Flowers and fruits are unique to:

Correct Answer
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Correct Answer
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Correct Answer
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Arabidopsis thaliana is a small angiosperm related to mustard.The fact that it has 139 genes that correspond to disease-causing genes in humans suggests which of the following?

Correct Answer
verified

The part of the plant that conducts water and dissolved minerals from the roots to the leaves is the:

Correct Answer
verified

Which of the following is not a member of the gymnosperms?

Correct Answer
verified

Which of the following was the last to appear in the fossil record?

Correct Answer
verified

Molecular evidence suggests that plants and green algae do not descend from a common ancestor.

Correct Answer
verified

In plants:

Correct Answer
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A plant embryo (young sporophyte) packaged with a food supply in a tough outer coat is a:

Correct Answer
verified

Cycads are:

Correct Answer
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Correct Answer
verified

The structure of the angiosperm that supplies nutrients to the germinating seedling is the:

Correct Answer
verified

The term gymnosperm literally means:

Correct Answer
verified

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did ferns have over bryophytes?

Correct Answer
verified

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did gymnosperms have over ferns?

Correct Answer
verified

In flowering plants:

Correct Answer
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In dry weather plants reduce water loss by closing their:

Correct Answer
verified

In alternation of generations,a haploid gametophyte goes through mitosis to form a ____ gamete.

Correct Answer
verified

A gaseous hormone produced by plants that helps control fruit ripening is:

Correct Answer
verified

Exam 18: Plants

Flowers and fruits are unique to:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Arabidopsis thaliana is a small angiosperm related to mustard.The fact that it has 139 genes that correspond to disease-causing genes in humans suggests which of the following?

Correct AnswerverifiedShow Answer

The part of the plant that conducts water and dissolved minerals from the roots to the leaves is the:

Correct AnswerverifiedShow Answer

Which of the following is not a member of the gymnosperms?

Correct AnswerverifiedShow Answer

Which of the following was the last to appear in the fossil record?

Correct AnswerverifiedShow Answer

Molecular evidence suggests that plants and green algae do not descend from a common ancestor.

Correct AnswerverifiedShow Answer

In plants:

Correct AnswerverifiedShow Answer

A plant embryo (young sporophyte) packaged with a food supply in a tough outer coat is a:

Correct AnswerverifiedShow Answer

Cycads are:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The structure of the angiosperm that supplies nutrients to the germinating seedling is the:

Correct AnswerverifiedShow Answer

The term gymnosperm literally means:

Correct AnswerverifiedShow Answer

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did ferns have over bryophytes?

Correct AnswerverifiedShow Answer

The first land plants were bryophytes,which then branched into ferns,gymnosperms,and finally angiosperms.What advantage did gymnosperms have over ferns?

Correct AnswerverifiedShow Answer

In flowering plants:

Correct AnswerverifiedShow Answer

In dry weather plants reduce water loss by closing their:

Correct AnswerverifiedShow Answer

In alternation of generations,a haploid gametophyte goes through mitosis to form a ____ gamete.

Correct AnswerverifiedShow Answer

A gaseous hormone produced by plants that helps control fruit ripening is:

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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