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BSC2011 - Exam 1

Terms in this set (28)

Which of the following is a synapomorphy of the clade of "green plats"?

A. Protected embryo, cuticle, & multicellular sporophyte
B. Chlorophyll b and starch storage
C. Chloroplasts
D. Retention of egg in parental organism
E. All of these are synapomorphies of the clade of "green plants"
B. Chlorophyll b and starch storage
True or false: Photosynthesis is an example of convergent evolution; it evolved multiple times in the tree of life. Therefore, the group of photosynthetic eukaryotes is a clade.
False
True or False: Mycorrhizae involve an interaction between plants and bacteria.
False (it's an interaction between plants and fungi)
True or False: A trend in the evolution of plants over time has been a movement from a life cycle dominated by the diploid form to a life cycle dominated by the haploid for.
False
Green Plants acquired their chloroplasts through...

A. quaternary endosymbiosis
B. tertiary endosymbiosis
C. primary endosymbiosis
D. secondary endosymbiosis
E. none of these are correct
C. primary endosymbiosis
A bryophyte sporophyte produces spores through...

A. fertilization
B. meiosis
C. the question errs. Bryophyte sporophytes do not produce spore.
D. mitosis
E. more than one of these is correct.
B. meiosis
A liverwort's spore cells contain 32 chromosomes. How many chromosomes would you expect to find in a cell from the gemma of the same liverwort?

A. 16
B. 8
C. 32
D. 64
E. 128
C. 32
Which of the following is likely to be the largest?

A. Moss sporophyte
B. Conifer gametophyte
C. Moss gametophyte
D. Fern gametophyte
E. The question errs; all of these are the same size.
C. Moss gametophyte
Crossing over (recombination) occurs in all of the following EXCEPT:

A. Crossing over (recombination) occurs in all of these.
B. The strobili of lycophytes (club mosses)
C. The gametophyte of a moss
D. The sori of ferns
E. The sporangia of horsetails
C. The gametophyte of a moss
You would NOT expect to find a(n) ________________ in a lycophyte.

A. You would not expect to find any of these in a lycophyte
B. megaphyll
C. microphyll
D. independent sporophyte
E. independent gametophyte
B. megaphyll
Which of the following is NOT a characteristic of seed plants?

A. Sporophyte dominance
B. Reduction in the number of megaspores in the sporangium
C. Woody secondary growth
D. Homospory
E. Fertilization without water
D. Homospory
All of the following will produce pollen EXCEPT:

A. Coontie (a cycad)
B. Equisetum (a horsetail)
C. Ephedra (a gnetophyte)
D. The Oak tree (an angiosperm)
E. The Giant Sequoia tree (conifer)
B. Equisetum (a horsetail)
Which of these is NOT a benefit of secondary growth?

A. Promotion of vertical growth
B. Added girth and protection
C. Increased transport of water through the secondary xylem
D. All of these are benefits of secondary growth.
E. None of these are benefits of secondary growth.
C. Increased transport of water through the secondary xylem
Which group has plants with fan-shaped leaves, was common during the Mesozoic era, and is today represented by a single species?

A. Gnetophytes
B. Conifers
C. Ginkgos
D. Cycads
E. None of these are correct
C. Ginkgos
Which of the following is NOT a characteristic of cycads?

A. They are monoeceous
B. Motile sperm with flagella
C. Symbiotic relationship with nitrogen-fixing bacteria
D. Pollination by beetles
E. All of these are characteristics of cycads
A. They are monoeceous
Which of the following is the dominant part of the angiosperm life cycle?

A. Haploid gametophyte
B. Diploid gametophyte
C. Haploid spore
D. Haploid sporophyte
E. Diploid sporophyte
E. Diploid sporophyte
Which of the following are components of the carpel?

A. Ovary, style, and stigma
B. Filament and anther only
C. Ovary and stigma only
D. Ovule, style, and pistill
E. Filament, stigma, and style
A. Ovary, style, and stigma
Many flowering plants have ________________ composed of many ________________. (This can be deceiving. For example, in the sunflower or daisy family of plants, what appears to be a "petal" is actually an individual flower.)

A. inflorescences; flowers
B. inflorescences; anthers
C. flowers; petals
D. anthers; inflorescences
E. None of these are correct.
A. inflorescences; flowers
Which of the following statements about the embryonic sporophyte, megagametophyte, and seed coat/integument is true?

A. The diploid tissues are genetically identical.
B. These three tissues are each genetically different individuals.
C. The seed coat/integument Is genetically identical to the megagametophyte.
D.The megagametophyte is genetically identical to the embryonic sporophyte.
E. None of these is correct.
B. These three tissues are each genetically different individuals.
Identify the FALSE statement about angiosperm seeds below.

A. A seed's nutritive tissue contains genes from only the mother of the embryo.
B. Seeds consist of three different genetic "individuals" packaged together
C. Seeds consist of three different stages in the alternation of generations life cycle.
D. Seeds contain two genetically different, diploid tissue layers.
E. All of these are true.
A. A seed's nutritive tissue contains genes from only the mother of the embryo.
How many cells are in a typical angiosperm megagametophyte?

A. 10
B. 1
C. 7
D. 8
E. 3
C. 7
The nutritive tissue in gymnosperm seeds is ______________ while the nutritive tissue in angiosperm seeds is _______________.

A. diploid; triploid
B. triploid; diploid
C. haploid; triploid
D. diploid; diploid
E. haploid; diploid
C. haploid; triploid
Some plant species living in inhospitable climates employ the strategy of being _____________, which allows them to remain dormant when conditions are bad.

A. monoecious
B. annual
C. convergent
D. succulent
E. None of these
B. annual
Which genes would you expect to find in the genome of a plant?

A. Neither Avr genes nor R genes
B. Such generalizations cannot be made.
C. Avr genes
D. R genes
E. Both Avr genes and R genes
D. R genes
A B C. D
I I I I
I_______I I I
I__________I I
I________________I
I
I
Which lineage is sister to A?
A. D
B. B
C. The lineage that includes B, C, and D
D. The lineage that includes B and C
B. B
A B C. D
I I I I
I_______I I I
I__________I I
I________________I
I
I
Which lineage is sister to C?
A. D
B. B
C. The lineage that A, B, and D
D. The lineage that includes A and B
D. The lineage that includes A and B
In general, Lycophytes produce _______________ while Monilophytes produce ______________.

A. spores; seeds
B. an indusium; a storbilus
C. fiddleheads; an annulus
D. microphylls; megaphylls
D. microphylls; megaphylls
Hygroscopic structures change shape when humidity changes. Such structures ensure that spores are released when conditions are optimal for dispersal. These structures include [choose all correct answers]:

A. Opercula
B. Elaters
C. Stomata
D. Peristome teeth
E. Indusium
B. Elaters
D. Periostome teeth
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