haploid cells produced in the gametophyte stage of a plant that can divide by mitosis and form structures or an entire new plant or can develop into sex cells.
plant life cycle stage that begins when cells in reproductive organs undergo meiosis and produce haploid cells (spores).
plant life cycle stage that begins when an egg is fertilized by a sperm.
leaf of a fern that grows from the rhizome
fern structures in which spores are produced
small, green, heart-shaped gametophyte plant form of a fern that can made its own food and absorb water and nutrients from the soil
small structure produced by the male reproductive organs of a seed plant; hav a water-restant coat, can develop form a spore, and contains gametophyte parts that will produce sperm
female reproductive organ inside the flower of an angiosperm; consists of an ovary and a sticky stigma, where pollen grains land.
Transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, animals.
female reproductive organ that produces eggs and is located in the lower part of the body
In gymnosperms, the female reproductive part that produces eggs and food-storage tissues
series of events that results in the growth of a plant from a seed
male reproductive organ inside the flower of an angiosperm; consists of an anther, where pollen grains form, and a filament
angiosperm life cycle
seed formation begins with the formation of sperm and eggs in the male and female flower parts. 1. Pollination happens when pollen grains from the anthers land on the sticky sigma of a pistil. 2. The pollen tube grows from the pollen grain down through the style and into the ovary to the ovule. 3. The sperm then travels down the pollen tube and fertilizes the egg. This zygote develops into the plant embryo. 4. Parts of the ovule beome the seed's coat and stored food. The ovary and other flower parts will form a fruit that surrounds the seed.
Gymnosperm life cycle
Seed formation in pines, as in most gymnosperms, involves male and female cones. 1. In the cones, cells divide by meiosis to produce gametophyte plant structures. Eggs & food storage tissue are produced in the ovule. Two sperm form inside each pollen grain. 2. Each pollen grain has tiny wings that help carry it to the female cone. When it reaches the female cone, a pollen tube grows and one sperm fertilizes the egg. This process may take up to 15 months. 3. The Zygote produced following fertilizatuion grows into an embryo. The embryo is a new, immature sporophyte plant.
Flower (Diagram & Label the 4 parts)
1. Pistil (sticky sigma, style, ovary & ovule) 2. Stamen ( anther & filament) 3. Petals (most colorful part of flower) 4. Sepals are small green leaflike part under the petals.
Seed Dispersal Methods
Three methods of seed dispersal in plants are water, wind, and animals
Three parts of Seed and their function.
1. Immature plant 2. Cotyledon(s) food is stored in this structure 3.Seed Coat surrounds the embryo