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Angiosperms Flashcards

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100021805AngiospermsA plant that produces seeds that are enclosed in a fruit.0
100021806OvarySeeds develop in the ovary. The ovary is located in the flower.1
100021807Fruitthe reproductive structure of an angiosperm.2
100021808Flowers come in allsort of sizes, shapes, and colors.3
100021809All flowers have the same purposereproductions4
100021810PetalsColorful structures that produce an odor to attract insects or other animals. These organisms ensure that pollination occurs.5
100021811SepalsSepals protect the developing flower. Sepals surround the flower when it is still a bud (undeveloped flower).6
100021812StamenThe male reproductive part. Consists of two parts:  Filament - A thin stalk that holds up the anther.  Anther - Pollen is produced in the anther.  Pollen - Inside a pollen grain is a sperm cell.7
100021813PistilFemale part of the flower usually found in the middle. Consists of three parts:  Stigma - The top of the pistil that is sticky so it can catch pollen.  Style - tube that connects the stigma to the ovary.  Ovary - A hollow structure which contains ovules that have eggs.8
100021814Reproduction Stages1.Pollen grains fall on a stigma. 2.The Pollen grain produces a pollen tube that grows into the ovule. 3. A sperm cell travels down the style inside the pollen tube. It joins the egg cell and fertilization occurs. 4. The fertilized egg becomes a zygote which will develop into the seed's embryo.9
100021815PollinationThe transfer of pollen from male reproduction structures to female reproduction structures in plants.10
100021816FertilizationThe joining of a sperm cell and an egg cell.11
100021817PollinatorsBirds, Bats, Insects (Bees), Wind. Nectar: a sugar-rich food is located deep inside the flower. When an animal/insect enters a flower to eat the nectar, it brushes up against the anther and becomes coated with pollen.12
100021818Self Pollinating Some of the pollen can drop onto the flower's stigma as the animal leaves the plant.13
100021819Cross PollinatingThe pollen can also be brushed onto the next flower the animal visits.14
100021820Fruit OvaryAs the seeds develops, the ovary changes into a fruit. Fruit: A ripened ovary and other structures that enclose one or more seeds. Animals that eat fruits help to disperse the seeds.15
100021821Monocots Monocots:  Grasses (corn, wheat, and rice)  Plants (lilies and tulips)16
100021822DicotsDicots:  Plants (roses, violets, dandelions)  Oak and Maple trees17
100021823MedicinesSome angiosperms are used to make medicines. - Aspirin was first made from a substance found in the leaves of willow trees. - Cortisone is a medicine made from the roots of the Mexican Yam. (treats arthritis/ joint problems).18
100021824Angiosperms and the living worldAngiosperms are an important source of: Food - Animals eat flowering plants such as grasses and leaves of trees. - People eat vegetables, fruits, a n d cereals (all are angiosperms).19
100021825Clothing/furniturePeople produce clothing and other products from angiosperms. - Seeds of cotton plants are covered with cotton fibers. - Stems of flax plants provide linen fibers. - Sap of tropical rubber trees are used to make rubber for tires. - Furniture is made from wood of maple, cherry, and oak trees.20

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