BIOLOGY 1407 EXAM 2 (CH. 28-31)
QUESTIONS AND ANSWERS
Which taxon is essentially equivalent to the "embryophytes"?
a) Plantae
b) Charophycea
c) Monilophyta
d) Bryophyta - Correct Answers -a) Plantae
According to our current knowledge of plant evolution, which group of organisms should
feature cell division most similar to that of land plants?
According to our current knowledge of plant evolution, which group of organisms should
feature cell division most similar to that of land plants?
a) red algae
b) unicellular green algae
c) charophytes
d) cyanobacteria - Correct Answers -c) charophytes
You find a green organism in a pond near your house and believe it is a plant, not an
alga. The mystery organism is most likely a plant and not an alga if it _____.
a) has cell walls that are comprised largely of cellulose
b) is surrounded by a cuticle
c) does not contain vascular tissue
d) contains chloroplasts - Correct Answers -b) is surrounded by a cuticle
Spores and seeds have basically the same function-dispersal-but are vastly different
because _____.
a) spores are unicellular; seeds are not
b) spores have stored nutrition; seeds do not
c) spores have a protective outer covering; seeds do not
d) spores have an embryo; seeds do not - Correct Answers -a) spores are unicellular;
seeds are not
Why have biologists hypothesized that the first land plants had a low, sprawling growth
habit?
, a) They were tied to the water for reproduction and thus needed to remain in close
contact with the moist soil.
b) The ancestors of land plants, green algae, lack the structural support to stand erect in
air.
c) There was less competition for space so they simply spread out flat.
d) Land animals of that period were small and could not pollinate tall plants. - Correct
Answers -b) The ancestors of land plants, green algae, lack the structural support to
stand erect in air.
The diploid generation of the plant life cycle always _____.
a) develops from a spore
b) is larger and more conspicuous than the haploid stage
c) is called the gametophyte
d) produces spores
e) produces eggs and sperm - Correct Answers -d) produces spores
Seedless plants include _____.
a) only lycophytes and pterophytes
b)only nonvascular plants
c) bryophytes and gymnosperms
d) mosses and angiosperms
e) bryophytes, lycophytes, ferns, whisk ferns, and horsetails - Correct Answers -e)
bryophytes, lycophytes, ferns, whisk ferns, and horsetails
Which of the following is true of the life cycle of mosses?
a) Spores are primarily distributed by water currents.
b) Antheridia and archegonia are produced by gametophytes.
c) The haploid generation grows on the sporophyte generation.
d) The sporophyte generation is dominant. - Correct Answers -b) Antheridia and
archegonia are produced by gametophytes.
Assuming that they all belong to the same plant, arrange the following structures from
largest to smallest.
1. antheridia
2. gametes
3. gametophytes
a) 3, 2, 1
b) 2, 3, 1
c) 3, 1, 2
d) 2, 1, 3 - Correct Answers -c) 3, 1, 2
QUESTIONS AND ANSWERS
Which taxon is essentially equivalent to the "embryophytes"?
a) Plantae
b) Charophycea
c) Monilophyta
d) Bryophyta - Correct Answers -a) Plantae
According to our current knowledge of plant evolution, which group of organisms should
feature cell division most similar to that of land plants?
According to our current knowledge of plant evolution, which group of organisms should
feature cell division most similar to that of land plants?
a) red algae
b) unicellular green algae
c) charophytes
d) cyanobacteria - Correct Answers -c) charophytes
You find a green organism in a pond near your house and believe it is a plant, not an
alga. The mystery organism is most likely a plant and not an alga if it _____.
a) has cell walls that are comprised largely of cellulose
b) is surrounded by a cuticle
c) does not contain vascular tissue
d) contains chloroplasts - Correct Answers -b) is surrounded by a cuticle
Spores and seeds have basically the same function-dispersal-but are vastly different
because _____.
a) spores are unicellular; seeds are not
b) spores have stored nutrition; seeds do not
c) spores have a protective outer covering; seeds do not
d) spores have an embryo; seeds do not - Correct Answers -a) spores are unicellular;
seeds are not
Why have biologists hypothesized that the first land plants had a low, sprawling growth
habit?
, a) They were tied to the water for reproduction and thus needed to remain in close
contact with the moist soil.
b) The ancestors of land plants, green algae, lack the structural support to stand erect in
air.
c) There was less competition for space so they simply spread out flat.
d) Land animals of that period were small and could not pollinate tall plants. - Correct
Answers -b) The ancestors of land plants, green algae, lack the structural support to
stand erect in air.
The diploid generation of the plant life cycle always _____.
a) develops from a spore
b) is larger and more conspicuous than the haploid stage
c) is called the gametophyte
d) produces spores
e) produces eggs and sperm - Correct Answers -d) produces spores
Seedless plants include _____.
a) only lycophytes and pterophytes
b)only nonvascular plants
c) bryophytes and gymnosperms
d) mosses and angiosperms
e) bryophytes, lycophytes, ferns, whisk ferns, and horsetails - Correct Answers -e)
bryophytes, lycophytes, ferns, whisk ferns, and horsetails
Which of the following is true of the life cycle of mosses?
a) Spores are primarily distributed by water currents.
b) Antheridia and archegonia are produced by gametophytes.
c) The haploid generation grows on the sporophyte generation.
d) The sporophyte generation is dominant. - Correct Answers -b) Antheridia and
archegonia are produced by gametophytes.
Assuming that they all belong to the same plant, arrange the following structures from
largest to smallest.
1. antheridia
2. gametes
3. gametophytes
a) 3, 2, 1
b) 2, 3, 1
c) 3, 1, 2
d) 2, 1, 3 - Correct Answers -c) 3, 1, 2
