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13 Cards in this Set
- Front
- Back
Explain the relationship between the pollination of a flower and the production of one or more seeds.
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Explain the relationship between the pollination of a flower and the production of one or more seeds.
One pollen grain is required for the production of each seed. |
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Name the part(s) of an anthophyte flower that becomes the fruit.
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usually the ovary
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Describe the process of double fertilization in anthophytes.
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Double fertilization occurs when one sperm unites with the egg cell, forming the diploid zygote and the other sperm cell fuses with the central cell to form a triploid cell
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Infer how the production of nectar could enhance the pollination of a flowering plant.
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Nectar attracts animals such as insects and bats; they get pollen on them as they try to reach the nectar. As these animals travel from flower to flower, they cross-pollinate the flowers
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Sequence the formation of the female gametophyte in a flowering plant.
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In the ovule, meiosis produces four haploid megaspores. One of these will undergo three mitotic divisions. The eight nuclei make up the embryo sac or female gametophyte
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Identify whether each organ of a flower is involved in pollination, fruit formation, seed production, or seed dispersal.
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pollination: stamen, pistil,; fruit formation: pistil, sometimes other flower organs; seed production: pistil; seed dispersal: pistil.
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two nuclei in the center of the egg sac of a flowering plant that become the triploid (3 n ) endosperm when joined with a sperm during double fertilization.
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polar nuclei
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anthophyte fertilization in which one sperm fertilizes the egg and the other sperm joins with the central cell; results in the formation of a diploid (2 n ) zygote and a triploid (3 n ) endosperm.
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double fertilization
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food storage tissue in an anthophyte seed that supports development of the growing embryo.
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endosperm
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period of inactivity in a mature seed prior to germination (sleep)
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dormancy
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beginning of the development of an embryo into a new plant.
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germination
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embryonic root of an anthophyte embryo; the first part of the young sporophyte to emerge during germination.
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radicle
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portion of the stem nearest the seed in a young plant.
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hypocotyl
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