Question | Answer |
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 develop into sex cells |
gametophyte stage | plant life cycle stage that begins when cells in reproductive organs udergo meiosis 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 a rhizome |
rhizome | underground stem |
sori | fern structures in which spores are produced |
prothallus | small, green, heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil |
pollen grain | small structure produced by the male reproductive organs of a seed plant; has a water-resistant coat, can develop from a spore, and contains gametophyte parts that will produce sperm |
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 the flower of an angiosperm; consists of an anther, where pollen grains form, and a filament |
pistil | female reproductive organ inside the flower of an angiosperm; consists of a sticky stigma, where pollen grains land, and an ovary |
ovary | swollen base of an angiosperm's pistil, where egg-producing ovules are found |
germination | series of events that results in a growth of a plant from a seed |