Question 1

The most direct ancestors of land plants were probably

Accepted Answer

A)  any of the green algae that live in water.
B)  certain groups of algae.
C)  photosynthesizing prokaryotes (cyanobacteria) .
D)  liverworts and mosses.E) B) and D)
F) A) and B)

Question 2

What is the significance of measuring fruit production?

Accepted Answer

A)  It is a measure of pollination success.
B)  It is a measure of seed dispersal success.
C)  It is easier than counting flowers.
D)  It is an indication of predation on the seeds of the plants.E) C) and D)
F) None of the above

Question 3

How are the bryophytes and seedless vascular plants alike?

Accepted Answer

A)  Plants in both groups have vascular tissue.
B)  In both groups,sperm swim from antheridia to archegonia.
C)  The dominant generation in both groups is the sporophyte.
D)  Plants in both groups have true roots,stems,and leaves.
E)  All of these answers apply.F) A) and B)
G) D) and E)

Question 4

About 450 million years ago,the terrestrial landscape on Earth would have

Accepted Answer

A)  looked very similar to that of today,with flowers,grasses,shrubs,and trees.
B)  been completely bare rock,with little pools that contained bacteria and cyanobacteria.
C)  been covered with tall forests in swamps that became today's coal.
D)  had nonvascular green plants similar to liverworts forming green mats on rock.E) None of the above
F) B) and C) D

Question 5

According to the fossil record,plants colonized terrestrial habitats

Accepted Answer

A)  in conjunction with insects that pollinated them.
B)  in conjunction with fungi that helped provide them with nutrients from the soil.
C)  from marine habitats.
D)  only about 150 million years ago.E) A) and D)
F) B) and D)

Question 6

Some plants changed their flowers to lighter colors,and some retained the same darker color all season.Which plants do you expect produced more fruit?

Accepted Answer

A)  those that changed their color to a lighter shade
B)  those that stayed darker
C)  They probably produced the same numbers of fruit.D) A) and B)
E) B) and C)

Question 7

Why have seed banks been established?

Accepted Answer

A)  to serve as a store of genetic diversity of crop plants
B)  to serve as a store of seeds for the next growing seasons
C)  to serve as a store of seeds before they are sold at market
D)  All of these answers apply.E) B) and C)
F) A) and D)

Question 8

Immature seed cones of conifers are usually green before pollination,and flowers of grasses are inconspicuously colored.What does this indicate about their pollination?

Accepted Answer

A)  They self-fertilize and do not need pollen carried from one plant to another.
B)  Their pollinating insects are color blind.
C)  They are wind pollinated.
D)  They probably attract pollinators using strong fragrances.E) A) and D)
F) C) and D)

Question 9

Spores and seeds have basically the same function,dispersal,but are vastly different because

Accepted Answer

A)  spores have a protective outer covering;seeds do not.
B)  spores have an embryo;seeds do not.
C)  spores have stored nutrition;seeds do not.
D)  spores are unicellular;seeds are not.
E)  spores depend primarily on animals for dispersal;seeds do not.F) B) and E)
G) B) and D)

Question 10

Why have biologists hypothesized that the first land plants had a low,sprawling growth habit?

Accepted Answer

A)  At the time of the first land plants,the atmosphere had oxygen mainly close to the ground.
B)  Land animals of that period consumed erect plants.
C)  The ancestors of land plants,green algae,lack the structural support to stand erect in air.
D)  Land animals of that period were small,so they needed short plants to eat.
E)  Only fossilized plants exhibit this habit.F) D) and E)
G) None of the above

Question 11

Bioprospectors and ethnobotanists search for plants and plant products used for medicines by native cultures.The major function of the medicinal compounds in plants is to

Accepted Answer

A)  attract pollinators for seed dispersal.
B)  attract insects and birds to spread seeds and fruits.
C)  defend the plant against herbivores and microbes.
D)  All of these answers apply.E) A) and C)
F) None of the above

Question 12

In general,liverworts have a cuticle and pores.However,some species do not have pores.What would you predict concerning the cuticle of these species and why?

Accepted Answer

A)  The cuticle would be the same as in those species with pores.
B)  The cuticle would be thicker than in those species with pores.
C)  The cuticle would be thinner than in those species with pores.
D)  There is not enough information to make a prediction.E) C) and D)
F) None of the above

Question 13

The retaining of the zygote on the living gametophyte of land plants

Accepted Answer

A)  protects the zygote from herbivores.
B)  helps in dispersal of the zygote.
C)  allows it to be nourished by the parent plant.
D)  is found only in seed plants.E) A) and D)
F) None of the above

Question 14

Which of these processes does not result in the formation of a different generation in a plant's sexual life cycle?

Accepted Answer

A)  meiosis
B)  mitosis
C)  fertilizationD) None of the above
E) All of the above

Question 15

Which of these are spore-producing structures?

Accepted Answer

A)  sporophyte (capsule) of a moss
B)  antheridium of a moss or fern
C)  archegonium of a moss or fern
D)  All of these answers apply.E) A) and C)
F) B) and C)

Question 16

As you stroll through a moist forest,you are most likely to see a

Accepted Answer

A)  zygote of a green alga.
B)  gametophyte of a moss.
C)  sporophyte of a liverwort.
D)  gametophyte of a fern.E) All of the above
F) A) and C)

Question 17

Which of the following possess stomata?

Accepted Answer

A)  Ulvophyceae
B)  Hepaticophyta
C)  Charaphyaceae
D)  Anthocerophyta
E)  All of these answers apply.F) B) and D)
G) B) and E) D

Question 18

Seed plants are heterosporous.This means that

Accepted Answer

A)  they produce two types of spores.
B)  they produce two types of sperm.
C)  they produce two types of pollen.
D)  they produce two types of eggs.E) All of the above
F) C) and D) A

Question 19

Once plants evolved to live on land and had vascular tissue,megaphylls appeared to be selected for and replaced microphylls in most plant lineages.What is a major advantage of having larger leaves?

Accepted Answer

A)  Plants are better able to cool themselves by waving their leaves in the wind.
B)  Plants can shade the stem to prevent too much evaporation.
C)  Plants have more photosynthetic tissue for increased sugar production.
D)  Plants can better hide their reproductive parts from herbivores.
E)  All of the above apply.F) A) and E)
G) C) and D)

Question 20

What two major novelties allowed for the first colonization of terrestrial habitats by plants?

Accepted Answer

A)  roots and vascular tissue
B)  cuticle and pores
C)  roots and true leaves
D)  tracheids and vessel elements
E)  All of these answers apply.F) B) and C)
G) A) and E)

Exam 30: Green Algae and Land Plants

The most direct ancestors of land plants were probably

Correct AnswerverifiedShow Answer

What is the significance of measuring fruit production?

Correct AnswerverifiedShow Answer

How are the bryophytes and seedless vascular plants alike?

Correct AnswerverifiedShow Answer

About 450 million years ago,the terrestrial landscape on Earth would have

Correct AnswerverifiedD

According to the fossil record,plants colonized terrestrial habitats

Correct AnswerverifiedShow Answer

Some plants changed their flowers to lighter colors,and some retained the same darker color all season.Which plants do you expect produced more fruit?

Correct AnswerverifiedShow Answer

Why have seed banks been established?

Correct AnswerverifiedShow Answer

Immature seed cones of conifers are usually green before pollination,and flowers of grasses are inconspicuously colored.What does this indicate about their pollination?

Correct AnswerverifiedShow Answer

Spores and seeds have basically the same function,dispersal,but are vastly different because

Correct AnswerverifiedShow Answer

Why have biologists hypothesized that the first land plants had a low,sprawling growth habit?

Correct AnswerverifiedShow Answer

Bioprospectors and ethnobotanists search for plants and plant products used for medicines by native cultures.The major function of the medicinal compounds in plants is to

Correct AnswerverifiedShow Answer

In general,liverworts have a cuticle and pores.However,some species do not have pores.What would you predict concerning the cuticle of these species and why?

Correct AnswerverifiedShow Answer

The retaining of the zygote on the living gametophyte of land plants

Correct AnswerverifiedShow Answer

Which of these processes does not result in the formation of a different generation in a plant's sexual life cycle?

Correct AnswerverifiedShow Answer

Which of these are spore-producing structures?

Correct AnswerverifiedShow Answer

As you stroll through a moist forest,you are most likely to see a

Correct AnswerverifiedShow Answer

Which of the following possess stomata?

Correct AnswerverifiedD

Seed plants are heterosporous.This means that

Correct AnswerverifiedA

Once plants evolved to live on land and had vascular tissue,megaphylls appeared to be selected for and replaced microphylls in most plant lineages.What is a major advantage of having larger leaves?

Correct AnswerverifiedShow Answer

What two major novelties allowed for the first colonization of terrestrial habitats by plants?

Correct AnswerverifiedShow Answer

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D

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