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11 Cards in this Set
- Front
- Back
Explain how vegetative reproduction can produce a new plant. Provide an example.
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A new plant grows from a plant organ or part of it; liverwort gemmae or rhizome of a frond breaks off
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How is the sporophyte generation of a moss dependent on the gametophyte generation?
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for support and most of its nutrients
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Interpret the function of a plant's reproductive system.
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continuation of the species
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Compare and contrast the life cycle of a fern and a conifer.
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The sporophyte is dominant in both. The fern gametophyte grows from a spore, produces male and female gametes, and is separate from the sporophyte. Conifer gametophytes are within male and female sporophyte cones. Conifers grow from seeds.
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Why is the term alternation of generations appropriate to describe the life cycle of a plant?
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The sporophyte generation (2n) alternates with the gametophyte generation (n).
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Make an events-chain concept map of the life cycle of a fern, beginning with the prothallus.
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Prothallus —> gametes—> fertilization> diploid zygote -> sporophyte —> spore —> prothallus
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type of asexual reproduction in plants where a new plant is produced from existing plant organs or parts of organs.
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vegetative reproduction
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in mosses, a small, green filament of haploid cells that develops from a spore; develops into the gametophyte.
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protonema
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haploid spore formed by some plants that develops into a female gametophyte.
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megaspore
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haploid spore formed by some plants that develops into a male gametophyte.
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microspore
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the opening in the ovule through which the pollen tube enters.
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micropyle
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