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28 Cards in this Set
- Front
- Back
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Mosses are in what Phylum?
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Phylum Bryophyta (nonvascular plants)
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Liverworts are in what Phylum?
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Phylum Hepatophyta (nonvascular plants)
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Hornworts are in what Phylum?
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Phylum Anthocerophyta (nonvascular plants)
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Club mosses are in what Phylum?
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Phylum Lycophyta (vascular seedless plants)
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Ferns, horsetails, and wisk ferns are in what Phylum?
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Phylum Pterophyta (vascular seedless plants)
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Conifers are in what Phylum?
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Coniferophyta (Seeded Vascular Gymnosperms)
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Cycads are in what Phylum?
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Cycadophyta (Seeded Vascular Gymnosperms)
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Ginkgo is in what Phylum?
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Ginkgophyta (Seeded Vascular Gymnosperms)
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Mormon tea is in what Phylum?
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Gnetophyta (Seeded Vascular Gymnosperms)
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Angiosperms are in what Phylum?
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Anthophyta
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Stomata (stoma sing.)
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allow gas exchange in leaves
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Alternation of generation
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plants alternate between a haploid gametophyte generation and a diploid sporophyte generation
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In Bryophytes which generation is dominant?
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Gametophyte
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In all land plants except for Bryophytes which generation is dominant?
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Sporophyte
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How are spores produced?
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The diploid sporophyte undergoes meiosis to produce haploid spores in the sporangium
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What process do the spores undergo to produce the gametophyte?
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Mitosis
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What is contained in the archegonia?
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eggs
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What is contained in the antheridia?
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Sperm
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How are the gametes produced (eggs and sperm)?
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Mitosis
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After the sporophyte undergoes meiosis is it diploid or haploid?
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haploid until it is fertilized and becomes a zygote.
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What is the gametangia?
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It's a jacket of cells that surrounds the gametes
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The plant whose apex is feathery and points upward contains the archegonia or the antheridia?
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The Archegonia- it's female
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Liverworts contain cups on their surface that are always open. What are they called and what do they produce?
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Gemmae cups and they contain flat green disks of tissue called gemmae. The gemmae are washed out and grow into new, genetically identical liverworts.
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What is the name of the cone-like feature at the apex of the club mosses and what does it contain?
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Strobili and it contains the sporangia
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What is the name of the leafy structure that holds up the mega or micro sporeangium?
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Mega or Micro sporophyll
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What is contained in the microsporangium?
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The microspores
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Define homospory
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nonvascular plants and most seedless vascular plants produce one type of spore.
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Define heterospory
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advanced feature of seedless vascular plants where they produce two kinds of spores (megaspores and microspores)
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