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Ashley's Science Sta
science plants
Question | Answer |
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spore | in plants, haploid cells produced in the gametophyte stage that can divide by mitosis to form plant structures or an entire new plant or can devolop sex cells. |
gametophyte stage | plant life cycle stage that begins when cells in reproductive organs undergo mesios and produce haploid cells. |
sporophyte stage | plant life cycle stage that begins when an egg is fertilized by a sperm. |
frond | leaf of a fern that grows from the rhizome. |
rhizome | underground root |
sori | fern structures in which spores are produced. |
prothallus | small, green, heart-shaped gametophyte plant form of fern that can make its own food and absorb water and nutrinets from the soil. |
pollen grain | small structure produced by the male reproductive organs of a seed plant |
pollination | transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, and animals. |
ovule | in seed plants, the female reproductive part that produces eggs. |
stamen | male reproductive organ inside of an angiosperm. |
ovary | swollen base of an angiosperm's pistil, where egg-producing ovules are found. |
germination | series of events that results in the growth of a plant from a seed. |
pistil | female reproductive organ inside the flower of an angiosperm. |