Plant Diversity Chapter 30 Exam Bank Solution Manual (Graded A+)
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Plant Diversity Chapter 30
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Plant Diversity Chapter 30
Plant Diversity Chapter 30 Exam Bank Solution Manual (Graded A+)
heterospory - Answers the existence of male and female gametophytes
From which seed plant sporophyte structure(s) do the immature (unfertilized) gametophytes directly gain water and nutrition? - Answers sporangia
an ongoing trend i...
Plant Diversity Chapter 30 Exam Bank Solution Manual (Graded A+)
heterospory - Answers the existence of male and female gametophytes
From which seed plant sporophyte structure(s) do the immature (unfertilized) gametophytes directly
gain water and nutrition? - Answers sporangia
an ongoing trend in the evolution of land plants - Answers reduction of the gametophyte phase of the
life cycle
cellular structures that are functionally important in cells of the gametophytes of both angiosperms and
gymnosperms - Answers haploid nuclei, mitochondria, cell walls, peroxisomes
NOT chloroplasts
Plants with a dominant sporophyte are successful on land partly because - Answers their gametophytes
are completely enclosed within sporophyte tissue.
Main function of a seed coat - Answers desiccation (drying) resistance
In addition to seeds, what characteristic is unique to the seed-producing plants? - Answers pollen
Which of the following most closely represents the male gametophyte of seed-bearing
plants? - Answers pollen grain interior
Suppose that the cells of seed plants, like the skin cells of humans, produce a pigment upon
increased exposure to UV radiation. Rank the cells below, from greatest to least, in terms of
the likelihood of producing this pigment.
1. cells of sporangium
2. cells in the interior of a subterranean root
3. epidermal cells of sporophyte megaphylls
4. cells of a gametophyte - Answers 3, 1, 4, 2
Arrange the following in the correct sequence, from earliest to most recent, in which these
In seed plants, which part of a pollen grain has a function most like that of the seed coat? - Answers
sporopollenin
In terms of alternation of generations, the internal parts of the pollen grains of
seed-producing plants are most similar to a - Answers fern gametophyte bearing only antheridia
What is most important in making the typical seed more resistant to adverse
conditions than the typical spore? - Answers integument(s)
A researcher has developed two stains for use with seed plants. One stains sporophyte
tissue blue; the other stains gametophyte tissue red. If the researcher exposes pollen grains
to both stains, and then rinses away the excess stain, what should occur? - Answers The pollen grains
will have red interiors and blue exteriors
Gymnosperms differ from both extinct and extant ferns because they - Answers have pollen
The main way that pine trees disperse their offspring is by using - Answers windblown seeds
Generally, wind pollination is most likely to be found in seed plants that grow - Answers in dense, single-
species stands
Describes a portion of the pine life cycle - Answers Female gametophytes use mitosis to produce eggs
Which of these statements is true of the pine life cycle? - Answers Conifer pollen grains contain male
gametophytes.
Within a gymnosperm megasporangium, what is the correct sequence in which the
following should appear during development, assuming that fertilization occurs?
1. sporophyte embryo
2. female gametophyte
3. egg cell
4. megaspore - Answers 4, 2, 3, 1
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