BIO 182 EXAM 3 UPDATED Exam
Questions and CORRECT Answers
Water is buoyant and so provides support to plants living in the water. For plants to invade land,
what would be needed to help address this issue?
a. exoskeleton
b. waxy cuticles
c. rigid structures
d. photosynthesis - CORRECT ANSWER - c. rigid structures
It is thought that plants were the first organisms to live on land, which would mean that
originally, they did not have the problem of being ______ - CORRECT ANSWER - eaten
What major adaptations are found in all terrestrial plants? Select all that apply.
a. alternation of generations
b. spores formed in sporangium
c. seed dispersal mechanisms
d. haploid cells produced by a gametangium
e. photosynthesis in leaves - CORRECT ANSWER - a. alternation of generations
b. spores formed in sporangium
d. haploid cells produced by the gametangium
What benefits are gained from having lignin as part of the cell wall?
a. semipermeable barrier to allow carbon dioxide in and oxygen out
b. prevents shrinking of plasma membrane
c. provides a food source when the light isn't shining
d. firm rigid structure allowing increased plant height
e. helps focus sunlight so more energy can be obtained - CORRECT ANSWER - d. firm
rigid structure allowing increased plant height
,The male structure in seedless plants that releases sperm is called the _____ - CORRECT
ANSWER - antheridium
Which of the following are seedless, non-vascular plants that likely represent some of the earliest
forms of land plants? Select all that apply.
a. mosses
b. liverworts
c. ferns
d. horsetails
e. lycophytes
f. hornworts
g. pteridophytes - CORRECT ANSWER - a. mosses
b. liverworts
f. hornworts
_____ is found in the cell walls of both green algae and plants. - CORRECT ANSWER -
cellulose
The conspicuous vegetative organs such as the thallus, rhizoid, and stem all belong to which
stage in the bryophytes?
a. sporophyte
b. sporangium
c. diploid
d. gametophyte - CORRECT ANSWER - d. gametophyte
In seedless vascular plants, what is the dominant phase in the life cycle?
a. sporophyte
b. haploid
, c. gametophyte
d. archegonium - CORRECT ANSWER - a. sporophyte
Vascular tissue helps with which of the following? Select all that apply.
a. transport food
b. pest resistance
c. transport water
d. sexual reproduction
e. increased height
f. root development - CORRECT ANSWER - a. transport food
c. transport water
e. increased height
f. root development
The first naked seed plants that evolved about 380 million years ago are the _____ - CORRECT
ANSWER - progymnosperms
Why would a plant height increase provide an advantage?
a. move food farther
b. water movement
c. better access to light
d. evaporation
e. tensile strength - CORRECT ANSWER - c. better access to light
Which of the following are associated with pollen? Select all that apply.
a. diploid
b. survive dry conditions
c. embryo protection
Questions and CORRECT Answers
Water is buoyant and so provides support to plants living in the water. For plants to invade land,
what would be needed to help address this issue?
a. exoskeleton
b. waxy cuticles
c. rigid structures
d. photosynthesis - CORRECT ANSWER - c. rigid structures
It is thought that plants were the first organisms to live on land, which would mean that
originally, they did not have the problem of being ______ - CORRECT ANSWER - eaten
What major adaptations are found in all terrestrial plants? Select all that apply.
a. alternation of generations
b. spores formed in sporangium
c. seed dispersal mechanisms
d. haploid cells produced by a gametangium
e. photosynthesis in leaves - CORRECT ANSWER - a. alternation of generations
b. spores formed in sporangium
d. haploid cells produced by the gametangium
What benefits are gained from having lignin as part of the cell wall?
a. semipermeable barrier to allow carbon dioxide in and oxygen out
b. prevents shrinking of plasma membrane
c. provides a food source when the light isn't shining
d. firm rigid structure allowing increased plant height
e. helps focus sunlight so more energy can be obtained - CORRECT ANSWER - d. firm
rigid structure allowing increased plant height
,The male structure in seedless plants that releases sperm is called the _____ - CORRECT
ANSWER - antheridium
Which of the following are seedless, non-vascular plants that likely represent some of the earliest
forms of land plants? Select all that apply.
a. mosses
b. liverworts
c. ferns
d. horsetails
e. lycophytes
f. hornworts
g. pteridophytes - CORRECT ANSWER - a. mosses
b. liverworts
f. hornworts
_____ is found in the cell walls of both green algae and plants. - CORRECT ANSWER -
cellulose
The conspicuous vegetative organs such as the thallus, rhizoid, and stem all belong to which
stage in the bryophytes?
a. sporophyte
b. sporangium
c. diploid
d. gametophyte - CORRECT ANSWER - d. gametophyte
In seedless vascular plants, what is the dominant phase in the life cycle?
a. sporophyte
b. haploid
, c. gametophyte
d. archegonium - CORRECT ANSWER - a. sporophyte
Vascular tissue helps with which of the following? Select all that apply.
a. transport food
b. pest resistance
c. transport water
d. sexual reproduction
e. increased height
f. root development - CORRECT ANSWER - a. transport food
c. transport water
e. increased height
f. root development
The first naked seed plants that evolved about 380 million years ago are the _____ - CORRECT
ANSWER - progymnosperms
Why would a plant height increase provide an advantage?
a. move food farther
b. water movement
c. better access to light
d. evaporation
e. tensile strength - CORRECT ANSWER - c. better access to light
Which of the following are associated with pollen? Select all that apply.
a. diploid
b. survive dry conditions
c. embryo protection
