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13 Cards in this Set

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Explain the relationship between the pollination of a flower and the production of one or more seeds.
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.
Name the part(s) of an anthophyte flower that becomes the fruit.
usually the ovary
Describe the process of double fertilization in anthophytes.
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
Infer how the production of nectar could enhance the pollination of a flowering plant.
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
Sequence the formation of the female gametophyte in a flowering plant.
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
Identify whether each organ of a flower is involved in pollination, fruit formation, seed production, or seed dispersal.
pollination: stamen, pistil,; fruit formation: pistil, sometimes other flower organs; seed production: pistil; seed dispersal: pistil.
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.
polar nuclei
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.
double fertilization
food storage tissue in an anthophyte seed that supports development of the growing embryo.
period of inactivity in a mature seed prior to germination (sleep)
beginning of the development of an embryo into a new plant.
embryonic root of an anthophyte embryo; the first part of the young sporophyte to emerge during germination.
portion of the stem nearest the seed in a young plant.