BIO 182 Exam 3 2025 Questions and
Answers 100% Pass
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 - 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 ______ - 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
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,d. haploid cells produced by a gametangium
e. photosynthesis in leaves - 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 - ANSWER-d. firm rigid
structure allowing increased plant height
The male structure in seedless plants that releases sperm is called the _____ -
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
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, d. horsetails
e. lycophytes
f. hornworts
g. pteridophytes - ANSWER-a. mosses
b. liverworts
f. hornworts
_____ is found in the cell walls of both green algae and plants. - 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 - ANSWER-d. gametophyte
In seedless vascular plants, what is the dominant phase in the life cycle?
a. sporophyte
b. haploid
c. gametophyte
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Answers 100% Pass
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 - 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 ______ - 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
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,d. haploid cells produced by a gametangium
e. photosynthesis in leaves - 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 - ANSWER-d. firm rigid
structure allowing increased plant height
The male structure in seedless plants that releases sperm is called the _____ -
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
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, d. horsetails
e. lycophytes
f. hornworts
g. pteridophytes - ANSWER-a. mosses
b. liverworts
f. hornworts
_____ is found in the cell walls of both green algae and plants. - 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 - ANSWER-d. gametophyte
In seedless vascular plants, what is the dominant phase in the life cycle?
a. sporophyte
b. haploid
c. gametophyte
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